“Ah, we meet again! I'm taking a moment's rest from my calling to enjoy some musical frivolity with my daughters. Though it may not be within my power, I commit my wish as song...that this peace might last forever.”
Kass is a character from The Legend of Zelda: Breath of the Wild. He is a wandering Rito minstrel who will play the accordion and sing an ancient verse to Link, telling him the location of several shrines throughout Hyrule. Link can occasionally encounter Kass at certain stables where he will offer to sing Link an ancient song of Ganon's defeat 10,000 years prior.
He is the student of a Sheikah who was the court poet of Royal Family of Hyrule before the Great Calamity and is traveling the land to fulfill a promise he made to his teacher who is implied to have passed away at some point in the 100 years following the Great Calamity. However he was forced to leave his wife Amali and children in Rito Village and longs to fulfill his promise in order to return to them.