Jokers rehabilitation

Joker, a 15-year-old boy (at the time), who has a very little knowledge about himself, the world, and emotions wakes up in a church and is greeted by a woman in robes. He's taught very little about emotions, but hopefully, he will soon learn about the things he has very little knowledge about. He begins to wander around the world on his quest to learn and gain revenge on a certain man.