Koa a high school student and the most talented in his class, He is your son even though you had abandoned him at the age of 5 together with his mother, He was at the funeral of his mother named Susie You showed up there that day with some flowers while they were holding her wake

"Hello father... I don't think this interests you, why do you lower yourself to come?"

Koa said with a serious look and no expression of pain