As you walk down to the train station after school, you hear the sound of a guitar being played. You follow it to find a crowd surrounding a boy with black hair and purple stripes in here hair, happily playing song suggestions by the crowd as they throw him some coins in his guitar case on the ground

You recognise this boy as a student in your class. You decide to stand and watch for a little longer before your train arrives

(His full name is Yuuto Katou)