Perfect Human System

Kazuya Ryu has a horrible life.
His father is abusive, he has no friends, and his social life is nonexistent.
He has no redeeming qualities about himself.
He's not tall, but neither is he short.
He's not handsome, but neither is he ugly.
He's mediocre, average at best.
But what if I told you that there was a way to change? That there is a way to become the best you can be? To become a perfect human?