Yoichi Isagi

Overview

Synopsis

Relationships

Image Gallery

“	I'll sell my soul for the sake of winning. I found a new ego—way to fight.	”
	— Isagi discovers a new ego

Yoichi Isagi
Japanese	潔 世一
Rōmaji	Isagi Yoichi
Alias(es)	"Demon King of Blue Lock" "Heart of Blue Lock" "The Neo-Egoist" "Egoist Machine" "Genius of Adaptation"
Biological Information
Gender	Male
Age	16(Chapter 1-Chapter 209) 17 (Chapter 209-present)
Birthday	April 1
Height	175 cm (5'9")
Blood Type	B
Hair Color	Dark blue
Eye Color	Blue
Relatives	Isagi family Iyo Isagi (mother) Issei Isagi (father)
Professional Information
Occupation	Student
Affiliation	Blue Lock
Former affiliation(s)	Ichinan High School
Blue Lock rank	1 2 2 4 5 1 15 267 265 274 299
Team	Bastard München (Starter) Japan U-20
Former team(s)	Blue Lock Eleven (Starter) Team A (1st Game) Team Blue Lock (1st Clear Team) Team Red Team White Team Z Ichinan High Football Team
Jersey Number(s)	11 (Main) 15 (Second and Third Selection)
Position	Forward Offensive Midfielder
Weapon	Spatial Awareness Adaptability Direct Shot Off-the-Ball Movements Reflex Metavision Flow State Two Gun Volley
Debut
Manga	Chapter 1
Anime	Episode 1
Portrayal
Japanese Voice	Kazuki Ura Eri Yukimura (Young)
English Voice	Ricco Fajardo

Yoichi Isagi (潔 (いさぎ) 世 (よ) 一 (いち) , Isagi Yoichi^?) is the main protagonist of the Blue Lock series.

Isagi is a second-year high school student from Saitama who initially played as a forward in high school. Unlike his fellow competitors, who were scouted by Anri Teieri, Isagi was chosen personally by Jinpachi Ego himself after seeing him play. Isagi's main goal is to become the world's best striker.

After surviving the many trials and tribulations of Blue Lock, Isagi is ranked #1 in the program alongside Rin Itoshi and is seen as one of the most exciting talents in football with an offer from Bastard München at the end of the Neo Egoist League.

Isagi is a player who is wholeheartedly focused on being the best player on the field in every game. He doesn't care if he has to do things himself, urge his teammates to help him, take advantage of the ever-shifting feelings and emotions on the field, or completely set aside his pride and emotions to be a logical and efficient football machine that exists solely to win, ideally by scoring goals.

Following the end of the Neo Egoist League, Isagi has qualified to become one of the 23 players for the new Japan U-20 team entering the upcoming PIFA U-20 World Cup.

Quick Answers

What position does Yoichi Isagi play in the Blue Lock football team?

Yoichi Isagi, the main protagonist of the Blue Lock series, plays as a forward. Initially part of the Ichinan High School football team, he transitions to Blue Lock, joining Team Z for the First Selection. His ultimate goal is to be recognized as the world's top striker.

Provided by: Fandom

What is Yoichi Isagi's main goal in the Blue Lock series?

In the Blue Lock series, Yoichi Isagi, a second-year high school student and former forward for the Ichinan High School football team, aspires to become the world's best striker. After joining Team Z at the Blue Lock facility, he relentlessly pursues this goal.

Provided by: Fandom

How does Yoichi Isagi rank among the players in Blue Lock?

Yoichi Isagi, a member of the Blue Lock Eleven, has shown exceptional growth, matching and evolving his gameplay alongside Rin. Despite an initial low ranking of 299 out of 300, Isagi's strategic planning and motivational skills earned him the title 'Heart of Blue Lock'. His ambition is to become the world's top striker and earn a place on the Japan U-20 team for the U-20 World Cup.

Provided by: Fandom

Appearance

Isagi is a teenager of slightly above average height and slim build, developing a stronger, more defined-looking physique. He has short, dark blue hair that leaves a V-shaped fringe between his deep blue eyes, along with a plant shaped ahoge at the top of his head.

While attending Ichinan High School, he wore an unbuttoned blazer over a white undershirt and striped tie. Both the Ichinan High jersey and gym uniform are light-colored with black stripes.

At Blue Lock, Isagi wears the standard-issued body suit (black with blue stripes) and tracksuit. During the First Selection, he wore Team Z's blue #11 jersey and Team Z's gray-capped cleats. During Second Selection, he wore Team White's #15 jersey and later switched to red. He then later switched to Team A's black #15 jersey during the Blue Lock Eleven tryouts.

Isagi dons an official blue-colored Blue Lock player uniform with the #11, that looks very similar to the ones seen in the first cover spread minus the Japan flag during the Japan U-20 match.

As a regular for Team Germany, Isagi wears the red and black with gold stripes Bastard München uniform as #11.

Volume Cover 1

Young Isagi

Middle School Isagi

Ichinan High Uniform

Ichinan High Football uniform

Casual Clothes

Team Z uniform

Team White uniform

Blue Lock Eleven uniform (Manga)

Bastard München Uniform (Manga)

Isagi's Ego

Blue Lock player icon

Team A Uniform

Blue Lock Eleven Uniform (Anime)

isagi's winning goal

Personality

Isagi is easygoing and has a generally friendly, cheery personality, but his simple and innocent habits often get on the nerves of the people around him. He tends to avoid any childish squabbles among other Blue Lock competitors and tries to be a peacekeeper between his friends and rivals. At the beginning of Blue Lock, Isagi is massively unsure of himself and his skill due to being the second-lowest-ranked player in Blue Lock initially and his conflicting ideas of football. As time goes on, Isagi develops a more assertive presence on and off the field, becoming the foundation for Team Z and garnering the respect of some of the best players in Blue Lock, who mostly have heavily assertive or dominant personalities. As of Third Selection, Isagi has the confidence, charisma, and reputation to talk openly with Rin Itoshi, one of the most talented yet difficult people in the Blue Lock Project.

Initially, Isagi was unsure on how to proceed in Blue Lock due to being taught an ideology during his time in high school that conflicted with what was being promoted in Blue Lock, as well as being unsure on how to be egotistic. However, starting with Team Z's first win and subsequent wins thereafter, Isagi becomes well-acquainted with the rush of victory and the cold ruthlessness needed to survive in Blue Lock. As times goes on, he becomes willing to step on the plans and dreams of his opponents and teammates in order to score a goal and go further in Blue Lock. When it comes to football, he is ambitious and calculated, willing to change and adapt, to get the right "chemical reactions" out of his teammates, to stay a step ahead of their opponents, and be the best player on the field, staying true to his commitment to becoming the world's best striker. He sports an opportunistic and analytical playstyle and an insatiable hunger to win by scoring on the pitch; however, he is also shown to connect and cooperate with his other teammates very well. Importantly, Isagi has often valued and recognized the strengths of others' play, but as he proceeds through Blue Lock, he is able to identify and harness his own strengths to score.

Ever since meeting and losing to Rin, Isagi has been chasing him, attempting to surpass him at every turn. He goes out of his way to get closer to Rin, attempting to copy his cooldown routines and adapting his mindset in an attempt to get closer to his level. Isagi believes that when he is able to truly surpass Rin, he will be closer than ever to his goal of becoming the best striker in the world. Isagi is still prone to being nervous before big matches, such as the end of the First Selection, the beginning of the Third Selection, or the Japan U-20 match, and was slightly nervous while being interviewed after his decisive goal. However, in each case, Isagi was able to fully realize his ego and confidently stake his place among the best in Blue Lock, declaring that he would lead the Japan U-20 to victory in the World Cup. Isagi now doesn't like it when someone believes that his successes are just out of luck and not because of his skills as a striker. When he meets Tada, an old teammate from his school, and comments how "lucky" he was to score that goal in the match against Japan U-20, Isagi feels dismayed since Tada had absolutely no idea how much he had to fight every day inside of Blue Lock to get in the position he is currently, yet it does not dismay him for long as it motivates him into returning to Blue Lock and evolving even more.

After the beginning of the Neo Egoist League, Isagi's ego is much more noticeable than before, feeling completely insulted when Yukimiya questioned his decision to make a pass, calling him someone with a small way of thinking. The conversation enraged Isagi and provoked him to the point of almost getting into a fight with Yukimiya inside of the dressing room. He is also entirely capable of showing frustration when things don't go like he planned; in the Bastard München vs. Manshine City match, he is frustrated and enraged when Kunigami took advantage of his misfired shot due to Kaiser, and even more when Kaiser makes fun of him, saying that he likes making passes to goal instead of making scoring goals himself, not caring anymore about showing his egoism. According to Noel Noa, Isagi has an almost identical perspective on football as Ego, as they both share a mutual obsessive desire to win; he has even begun to exhibit a similar devilish smile on his face like Ego's whenever he's pumped up.

In the final match against Paris X Gen, after learning that Noa has been using him as a stepping stone for Kaiser from the very beginning, Isagi discovered an unfamiliar level of rage and frustration within himself. As a result, Isagi discovered a new ego, which relies on him "selling his soul for the sake of winning", he no longer cared about being the star or even being able to surpass "geniuses" in soccer, all that mattered to him was winning at any cost. Earning him the respect of world class strikers like his former idol Noel Noa, who began to see him as a genuine threat and accepted Isagi's grand public challenge to best him in the upcoming PIFA World Cup.

Abilities

Archetypes

• Forwards: also known as strikers, have the main objective of scoring goals. They are often the players who get the most attention since their role is designed to be in a scoring position. They also take part in penalty kicks and corner kicks when the opposing team kicks the ball out-of-bounds. They are normally the players in charge of starting off the game at the start and halftime.

• Raumdeuter: The word essentially translates to "space investigator" and is best used to define the effective role when exploiting the half space. A Raumdeuter's main function is to drift infield and find pockets of space in which to thrive; it is essentially a player who locates dangerous areas of the pitch and uses unoccupied space to create confusion among opposition backlines. They are limited dribblers and are not characterized by their pace. Their first touch is very efficient and is a huge contributor to their set-up touches prior to scoring.
  
  Isagi creates ideal plays and chance opportunities by using his spatial awareness to view the field as a whole and the players on it. With his understanding of all the players, he uses his off-the-ball movements to occupy empty spaces or create dangerous ones to form ideal plays for his teammates, chance opportunities using his teammates, and to score high-level goals for himself. With his reflex and enhanced vision, Isagi is able to create plays only possible for himself. Due to his relationships and game time with most of the prominent Blue Lock players, Isagi is able to bring the best out of his teammates by either forcing them to perform plays so he can attack or by pushing themselves to exceed Isagi's evolving skill. By the time of the Neo Egoist League, players are willing to follow or use as a guide Isagi's style of play, cementing his place at the top of Blue Lock. He has been noted to be the heart of Blue Lock by Sae Itoshi and implied to be that by Ego. A majority of Blue Lock and the world as a whole highly recognize and respect his skills; even Jinpachi Ego comments publicly on his ability, while Noel Noa recognizes him as a threat to his current position as the world's best striker.

Skills

• Spatial Awareness: Isagi instinctively begins to analyze the entire field, giving him a vast understanding of the game, including his opponents and teammates' weapons. Based on this understanding, Isagi can make accurate predictions as to the flow of the game. These premonitions then allow him to envision an ideal play midgame and execute it efficiently even when faced with strong opposition and an unpredictable field. His spatial awareness is among the highest in Blue Lock, often rivaling and sometimes surpassing other player's own visions, such as those of Niko and Rin.
  • Goal Scent: Using his spatial awareness, Isagi instinctively recognizes the "scent of a goal" that is emitted off of key players from his prediction and is able to expertly send them the ball so they may score.

• Metavision (超越視界 (メタ・ビジョン) , Meta Bijon^?, Transcendence Sight): A term used to describe a player's evolved vision that gives them an omnipotent perspective of the field.
  Using his eyes to constantly take in information from his central and peripheral vision, Isagi constantly collects data on every player, every play they make, and their positions on the field. After analyzing Michael Kaiser's goal formula, Isagi adopted Kaiser's transcendent use of his vision into his own style of play. Mixed with his spatial awareness, positioning, and reflex, Isagi is able to swiftly predict and shut down the plays of some of the best players in Blue Lock and even one of the best strikers in the world and further create ideal situations for his own goals using his teammates in a way that is only possible for him.
  • Meta-Burst Point: Using his Metavision, Isagi is able to pinpoint the most critical point in the enemy's play and move in to steal the ball or stop the ball at the last second. He used this skill to great effect in the game against Manshine City.

• Egocentrism: Isagi is able to utilize his Metavision to read and understand the motivations or "protagonism" behind people's play styles and use that understanding to further create opportunities for himself and his own team by denying the opposite team's players crucial plays that they attempt to make. Through this, Isagi is capable of anticipating, defending against, and shutting down critical, illogical, as well as even "miracle" plays that would normally be considered irrational, unpredictable, and unstoppable.

• Direct Shot (直撃蹴弾 (ダイレクトシュート) , Dairekuto Shūto^?, Direct Shoot): To perform a direct shot or volley, Isagi first assesses the positions of defenders and the trajectory of the ball, then lands a powerful kick on the ball's impact point in order to score a clean goal. In doing this, Isagi avoids having to overthink his positioning and next move and can just score a clean shot with no interference. Nagi noted that Isagi has no wasted motion when performing his shot, implying that Isagi performs it with flawless technique and control.
  • Back Heel Shot: Isagi first assesses the positions of defenders and feints a direct shot in anticipation for his opponent's block. Then he lands a powerful backwards kick on the ball's impact point in order to score a clean shot. This move was first used against Rin Itoshi during their rematch in the Second Selection, which surprised everyone at first sight.
  • Lefty Direct Shot: Acting as a supplement or "side weapon" to his right-footed direct shot, Isagi is able to perform a left-footed direct shot when his dominant right side is blocked that is strong yet not as powerful as his right-footed direct shot.
  • 2-Stage Lefty Direct Shot: Isagi assesses the positions of defenders and feints a direct shot with his right foot, in anticipation of his shot being blocked, then proceeds to tap the ball into the air and to the side instead, to further create sufficient space to shoot freely, a lefty direct shot.
  • Two-Gun Volley: Isagi's "Ultimate", which he invented during the Bastard München Vs. PXG match. An ambidextrous mid-air quickdraw that got inspiration from Nagi's Juggling Shot. Isagi gets into a shooting position using one foot but fakes the shot by moving his foot over the ball midair. He then jumps and quickly performs a jumping volley with the other foot into the goal, effectively combining both his left- and right-footed shooting. Hiori has called the shot "unstoppable" since no matter which defender comes in to block his shot, Isagi can fake them in midair and shoot after he destroys their timing. Plus, the goalkeeper will have a hard time timing his shot. Isagi again attempted this shot later in the game but it was blocked by Karasu, who gained metavision. He used it one more time during the climax of the match, and successfully scored the winning point, right after intercepting a drive pass from Ness.

• Off-the-Ball Movements: A term used to describe the moments where players are not in possession of the ball.
  Isagi may use these moments to position himself in his opponents' blind spots, position himself in a place where he can deceive the opposition and be a decoy for his teammates shots, or to position himself close enough to a teammate to pull off super close back-to-back passing that can break through an enemy's defense.
• Adaptability: Isagi is genuinely good at adaptability. He can use his weapons in the way that benefits him the most on the field to gain advantage for himself.

• Positioning: Mirroring Rin, Isagi is able to use his positioning to exploit luck during a game. If he realizes the ball will not be passed to him, Isagi will move to an opportune location, where he is in the blind spot of his opponent and where he would be able to score directly off of a direct shot. He used this to score the decisive goal in the match against the U-20.
  • Side Step Diagonal Run: While two defenders confront him, Isagi throws off both of their timing by faking going either left or right, and then runs through the gap between them he created.

• Reflex (反射的, Hanshateki^?): Isagi, as of the match against the Japan U-20, has begun to consciously incorporate reflex into his playmaking. Isagi is able to use his awareness of the conditions of the field to find spaces of opportunity, either to attack the opponent's goal or defend his own. He used this to instinctively move to a position where he could use a Direct Shot. After passing to Nagi, he used this to read Sae's corner kick by taking into account Sae's pass as well as Rin's and Shido's positioning, and he also demonstrated this ability at the end of the Japan U-20 match when he by reflex moved to the ball while in the blind spots of the Japan U-20 defense, scoring a powerful direct shot.

• Flow State: Flow, as Ego describes it, is the state of "total immersion" or "being in the zone." It is the mental state in which a person performing some activity is fully immersed in a feeling of energized focus, full involvement, and enjoyment in the process of the activity.
  Isagi's Flow state involves Isagi constantly using all of his weapons at once to read the field and the distortions caused by the players on it. With his Metavision, he complexly reads the field and identifies player motivations and distortions, then takes advantage of these with his spatial awareness and reflex and either mounts a surprise ironclad defense or a swift and unstoppable attack using his positioning and one-touch passing. Isagi has unintentionally entered Flow State numerous times during Blue Lock, even as early as the First Selection, though his most impressive feat was entering Flow during Bastard München's game against Manshine City, taking control of the field and directly leading his team to a goal twice.

Manga Appearances

Introduction Arc
1. Dream	Debut & Cover
2. Moving In	Appears
3. Monster	Appears
4. Right Now	Appears

First Selection Arc
5. The "Zero" of Soccer	Appears
6. Individual.	Appears
7. We'll Meet in Front of the Goal	Appears
8. Message	Appears
9. Superhero	Appears
10. Operation: Me, Next 9	Appears
11. Premonition & Intuition	Appears
12. Signal	Appears
13. The One to be Reborn	Appears
14. Resolve	Appears
15. Spiral	Appears & Cover
16. One Shot	Appears
17. Sorry	Appears
18. Thanks for the Help	Appears
19. Overwhelming Disadvantage	Appears
20. Boiling	Appears & Cover
21. Break Through!	Appears
22. Until This Fire Burns Out	Appears
23. Until They Met	Appears
24. Goal Formula	Appears
25. Trick	Appears
26. LAST GAME	Appears
27. Only One	Appears
28. Super Special	Appears
29. Flash of Evolution	Appears
30. Extreme Frenzy	Appears
31. Awakening	Appears
32. Impetus	Appears
33. Attack Waves	Appears
34. At This Rate	Appears
35. Last Chance	Appears
36. Right Here	Appears
37. The Last Piece	Appears
38. More	Appears

Second Selection Arc
39. Hungry	Appears
40. Second Selection	Appears
41. BLUE LOCK MAN	Appears & Cover
42. About-Face	Appears
43. Three-Man Teams	Appears
44. Rivalry Battle	Appears
45. Battle to the Death	Appears
46. TOP 3	Appears
47. Chemical Reaction	Appears
48. The Beauty of the Parabola	Appears
49. After the Parting	Appears
50. Match Confirmed	Appears
51. Creator	Appears
52. Talent and Mediocrity	Appears
53. Blind Spot	Appears
54. Devour	Appears
55. A Dream that Won't Come True	Appears
56. Proof I've Wagered My Life	Appears
57. Chance Encounter	Appears
58. The Battle Begins	Appears & Cover
59. Triple Combo	Appears & Cover
60. Field Vision	Appears
61. Leverage	Appears
62. Loser	Appears
63. Buried Ego	Appears
64. The Lead Actor's Stage	Appears
65. Trick of Fate	Appears
66. Loser's Crossroads	Appears
67. Power of Despair	Appears
68. Promise	Appears
69. Chaos	Appears
70. Dancing Boy	Cover
71. Friends	Appears
72. MATCH UP!!	Appears
73. Ultra-Coordination	Appears
74. Monster	Appears
75. Wild Dance	Appears
76. Can't Go Back	Appears
77. All-Out	Appears
78. Irregular	Appears
79. I'm Not There	Appears
80. Unlimited	Appears
81. Last Action	Appears
82. I Don't Need You	Appears
83. Voice	Appears
84. Initial Impulse	Appears
85. Eight Seconds Ago	Appears
86. Pride	Appears

World's Best Arc
87. Luck	Appears
88. World All-Stars	Appears
89. Demon
90. Third Selection	Appears
91. Divine Speed	Appears
92. The Closest	Appears

Third Selection Arc
93. Gathering	Appears
94. Time has Come	Appears & Cover
95. Tryouts	Appears
96. Chosen Path	Appears
97. Last Ticket	Appears
98. Villain	Appears
99. The Assassin and the Ninja	Appears
100. Optimal X Supreme - Worst	Appears & Cover
101. New Relation	Appears
102. The World of Feeling	Appears
103. Total Sensory Experience	Appears
104. Trance	Appears
105. 5 X 6
106. Chameleon
107. All Matches Over	Appears
108. Top 11	Appears

U-20 Arc
109. Battle Group	Appears
110. Newcomer	Appears
111. FLOW	Appears
112. Grand Stage	Appears
113. Cops and Robbers	Appears
114. Quartet	Appears
115. Sae Itoshi	Appears
116. Revenger	Appears
117. Nice to Meet You	Appears & Cover
118. Warped	Appears
119. Third Arrow	Appears
120. Blue Genes	Appears
121. 1st HALF	Appears
122. Headliner	Appears
123. World's Best	Appears
124. Night Snow
125. Ruin	Appears
126. 2nd HALF	Appears
127. Dragon Drive	Appears
128. Dramatic Exchange	Appears
129. Cool Head and Chameleon	Appears
130. The World Doesn't Know Me Yet	Appears
131. What You Taught Us	Appears & Cover
132. Dictator	Appears
133. Extreme Focus	Appears
134. Flowers	Appears & Cover
135. Shachihoko
136. Culmination	Appears
137. Last Step	Appears
138. One Mind in Two Bodies	Appears
139. Synchronize	Appears
140. Essence	Appears
141. Monster Trance	Appears
142. World Standard	Appears & Cover
143. Not Alone	Appears
144. Disposition	Appears
145. Born Slippy	Appears
146. Final Match-up	Appears
147. Last Attack	Appears
148. Declaration	Appears
149. Complete	Appears
150. Holiday	Appears
151. Changing World	Appears

Neo Egoist League Arc
152. Restart	Appears
153. Environment	Appears
154. Master	Appears
155. Neo Egotist League	Appears
156. BASTARD	Appears
157. Kaiser	Appears
158. All Time	Appears
159. Martial Law	Appears
160. Ginga X Monster	Appears
161. Bee Shot	Appears
162. Kaiser Impact	Appears
163. Embodiment	Appears
164. Butterfly	Appears
165. God-Given	Appears
166. Vessel	Appears
167. Cross Flow	Appears
168. Full Scope	Appears
169. Super Entertainment	Appears
170. Body Revolution	Appears
171. After the Game	Appears
172. Double Suicide	Appears
173. vs.ENGLAND	Appears
174. Opening Shot	Appears
175. Ideal and Reality	Appears
176. 44	Appears
177. Orbital Resonance	Appears
178. Face the Heck Forward	Appears
179. Under Development	Appears
180. Chick	Appears
181. Big Bang Piece	Appears
182. Meta Vision	Appears
183. Scenery	Appears
184. Best Goal Piece	Appears
185. Rebirth	Appears
186. Karma	Appears
187. Crossroads	Appears
188. Vortex	Appears
189. Yes, Boss	Appears
190. Revolutionary	Appears
191. Here I Come	Appears
192. Upheaval	Appears
193. Fangs	Appears
194. World's #2	Appears
195. Divine Trial	Appears
196. Stories	Appears
197. Protagonist Feeling	Appears
198. Zero Points	Appears
199. What Can You See?	Appears
200. I Don't Need A Next Time	Appears
201. Without Being Found By Anyone	Appears
202. Sword Heart	Appears
203. Overheat	Appears
204. War Buddies	Appears
205. Man of the Match	Appears
206. Expectations	Appears
207. Two Pair	Appears
208. 100%	Appears
209. VS. Ubers	Appears
210. Ace Eater	Appears
211. Zombie	Appears
212. UNKNOWN	Appears
213. Egotist Four	Appears
214. Work	Appears
215. Successor
216. Stealth Kill	Appears
217. Predator Eye	Appears
218. Game Changer	Appears
219. Dynamism	Appears
220. Seesaw Game	Appears
221. Take Me With You	Appears
222. Design	Appears
223. Are You Ready to Die?	Appears
224. Simple Job	Appears
225. Raid Battle	Appears
226. Letter of Resignation	Appears
227. Weighing the Future	Appears
228. Brat	Appears
229. UNDERDOG	Appears
230. Buddy	Appears
231. Dive to Blue	Appears
232. Explosive Evolution	Appears
233. Key	Appears
234. Director	Appears
235. The Reason I Was Born	Appears
236. Goodbye	Appears
237. The Center of the World	Appears
238. Dreamers	Appears
239. Produce	Appears
240. Triple Increase	Appears
241. Pickled Radish and Fermented Soybeans
242. Wizard and Blue Rose (Pt. 1)
243. Wizard and Blue Rose (Pt. 2)
244. PXG
245. Go Die and Come Back
246. Irregular and Perverse
247. Originality
248. Final Fight
249. The Beginning
250. Battling the Unknown
251. Box Seat
252. Peak Performance
253. Den of Demons
254. Self-Style, World-Style
255. Still Burning
256. Contradict the Contrary
257. Two-Gun
258. Combine, Invent, New Weapon
259. Impossible Challenge
260. Piece of Trash
261. Malice
262. Zero
263. Borderline
264. Dead Dead Dead or Alive
265. Beyond Restriction
266. Super Star
267. Golden Ticket
268. Pressure
269. Not Only
270. Break
271. Life is Beautiful
272. Rock, Paper, Scissors
273. Monster of Destruction
274. Failure of a Rival
275. Crashoot!
276. The Last
277. Genius and Prodigy
278. ○△◻
279. Soccer Junkies
280. The Wall of the Talented
281. The Formula of Evolution
282. Need You
283. Desperate Defense
284. Soul
285. Contract
286. New Era
287. Because You Were Here
288. Death Game

Anime Appearances

Season 1
1. Dream	Debut
2. Monster	Appears
3. Soccer's "Zero"	Appears
4. Premonition and Intuition	Appears
5. To Be Reborn	Appears
6. I'm Sorry	Appears
7. Rush	Appears
8. The Formula for Goals	Appears
9. Awakening	Appears
10. Just the Way It Is	Appears
11. The Final Piece	Appears
12. The Second Selection	Appears
13. TOP3	Appears
14. The Geniuses and the Average Joes	Appears
15. Devour	Appears
16. Tri-Fusion	Appears
17. Donkey	Appears
18. The Stage for the Lead	Appears
19. Dancing Boy	Appears
20. Super Link-Up Play	Appears
21. I'm Not There	Appears
22. Voice	Appears
23. Luck	Appears
24. The Time Has Come	Appears

Season 2
25. Tryouts	Appears
26. The Assassin and the Ninja	Appears
27. The World of Feeling	Appears
28. Chameleon	Appears
29. Flow	Appears
30. Grand Stage	Appears
31. Sae Itoshi	Appears
32. Blue Genes	Appears
33. Night Snow	Appears
34. Dramatic Exchange	Appears
35. What You Taught Us	Appears
36. Flowers	Appears
37. You're Not Alone	Appears
38. Last Attack	Appears

Etymology

• His given name, Yoichi (世 (よ) 一 (いち) , Yoichi^?), means "the world's best."
  • Yo (世 (よ) , Yo^?) means "a generation," "world," or "society."
  • Ichi (一 (いち) , Ichi^?) means "one," "first," or "best."
  • Phonetically, it can refer to Yo (四 (よ) , Yo^?) and Ichi (一 (いち) , Ichi^?) meaning "four" and "one," respectively, referring to his birthday, April 1^st.

• His surname, Isagi (潔 (いさぎ) , Isagi^?), means "undefiled," "pure," or "clean."
  • Phonetically, it can also refer to the kanji's adjective form, Isagiyoi (潔 (いさぎよ) い, Isagiyoi^?), meaning "sportsmanlike," "manly," or "brave."

• His name can thus be interpreted as "the world's rightful" or "the world's purest."

Quotes

• (To himself) "Football is a sport played with 11 people. So, one person can't win on their own. Football isn't just for one. One for all. I wanted to win!"

• (To himself) "I didn't come to trample on others to become the best in the world!! I came here, so, I need to defeat those who are stronger than me! Or else, nothing will change!!"

• (To himself) "Inside of me? I wanna know more! What my monster really is. That could be my one clue to surviving inside Blue Lock."

• (To Niko) "But this is my win, Niko. You don't have what it takes to be a striker."

• (To himself) "I still regret that time I chose to pass that ended in my loss and tears. I don't need to be like I was back then. What I want most is to win. The time to change is now!!"

• (To Nagi) "Sorry to say, Nagi, but winning is the only thing that will cool this fever."

• (To himself) "I found it. The piece of a new mindset. Smash it into my head and rewrite my own common sense! For the sake of winning, I should destroy everything about me!! I'll be reborn, as many times as I need!!"

• (To Baro) "No matter how much you try to understand other people's hearts, people aren't able to change others!! Every time, you have to change yourself. In order to change the world if nothing is going how you want to — that's surely the only way!! If I can't understand something clearly at last leading to a goal, I have to become that light. Watch, Baro!! This is me 'adapting' to you!! The darkness that you created on this field, I'll devour it and turn it into light."

• (To Baro) "Come on, go, donkey."

• (To Reo) "You shouldn't aim to be the one that get's chosen, but instead, the one that chooses."

• (To Reo) "Only people who will become the best strikers in the world can survive in Blue Lock."

• (To himself) "I can't become the best striker in the world that way!! I wanna win against Rin on my own!!"

• (To himself) "The difference between me and Rin is the difference in our resolve to accept. I sure am lame. I thought I'd finally reached Rin. No, I even thought I'd won against him. I lost to him and was just picked to go on! I have to accept that reality!! Otherwise, there won't be a next time. I have to incorporate that piece called 'Luck' in my thought process. I have to update my understanding on a fundamental level!! In order to win against Rin, I have to become a newer version of myself!!"

• (To Ego) "Who the heck cares about that? I don't give a chit. Not about the future of Japanese Football nor about some safe future for me. What I want—what we want—is to win this game."

• (To Nagi) "Your creativity is no more than play pretend to me, Nagi."

• (To Nagi and Reo) "There's no value in success if you can't reproduce it. I'll crush you. In this match, there won't be anymore miracles for you two."

• (To Igarashi) "Pursuing your goals to the fullest. That's the foundation of our ego. An ego that is unique only to you."

• (To Noa) "I'll do it—create a theory to surpass you. Remain the best in the world and wait for me, Noa. The next World Cup will be mine."

• (To Loki) "Shut it. You're the one who lost—Loki, your visualization of the future where Rin scored—Kaiser, and I smashed it apart. Be a man and admit you lost. You're awfully full of yourself for someone who just happened to be born fast."

Trivia

• The majority of this information is from the official Egoist Bible.
  • His zodiac sign is Aries.
  • He's the youngest of the 2^nd years in his high school (he was born on April 1).
  • His hometown is Saitama.
  • His foot size is 27 cm.
  • He has 2.0 vision in both eyes.
  • His blood type is B.
  • His dominant leg is his right side.
  • His favorite football player is Noel Noa.
  • He started playing football at the age of 4.
  • He thinks his strong point is being able to find other people's strengths, and he thinks his weak point is that he questions other people's expressions too much.
  • His favorite food is kintsuba. He does not have any least favorite foods.
  • He thinks the best thing to have with rice is salted salmon.
  • His hobby is going for walks.
  • His favorite season is autumn.
  • His favorite song is the Hachimitsu Kinkan Nodo Ame commercial song. He hums it when he's in a good mood.
  • His favorite movie is My Neighbor Totoro. It makes him wish he had a younger or older sister.
  • His favorite manga are Cyborg Kuro-chan and Hero Hero-kun because of their designs and funny drawings.
  • His favorite singer is Ken Hirai because his song, "Gaining Through Losing," makes him feel nostalgic.
  • His favorite color is light blue.
  • His character color is fluorescent green.
  • His favorite actor is Tom Cruise because he loves his acting.
  • His favorite animal is the Japanese spiny lobster because of its form.
  • His favorite subjects are PE and Arts. His least favorite subjects are Math and Science.
  • He has a Thigh fetish.
  • He likes when he is praised or given sweets. He doesn't like when he is ignored.
  • His ideal type is someone who laughs a lot and has a wonderful smile.
  • He received no Valentine's chocolates in the previous year.
  • He gets 7 hours of sleep each night.
  • The first thing he washes when in the bath is his head.
  • The last time he cried was when he was frustrated that he lost at the Prefectural Tournament Finals.
  • He received Christmas presents from Santa until he was 6 years old. The last thing that he asked for from Santa was a PlayStation 4.
  • If it were his last day on Earth, he would like to eat some kintsuba with some delicious tea.
  • If he received 100 million yen (≈$739,000), he would not know what to do with it and would give it to his parents.
  • He spends his days off playing football video games, reading manga, or going for walks when he has something on his mind.
  • His jumping height is 61 cm (24" or 8').
  • His morning routine consists of stretching, greeting his parents, having breakfast, performing a simulation of the day ahead, eating a sweet treat, and going to school.
  • When Isagi asked what he does for luck before a showdown, he said: "Shape the hair on the crown of my head into a nice V."

• Isagi ranked 1^st in the first popularity poll with 2,568 votes.

• The Japanese voice actress who does his child voice also voices Anri Teieri.

• His name and playstyle are based on Filippo Inzaghi but he shares playstyle similarities with Thomas Müller.

• His Ichinan team is the second strongest in Saitama.

• After the Japanese Representative Match, Isagi became the first Japanese striker whom Sae Itoshi has ever truly respected.