Ok, more points back to him... he did deeply regretted all his actions without no one telling him to. That means a lot. Still think was very unnecessary to make him go that far for story. Maybe i will redirect the disappointment towards the author solely and forgive Tamahiko.
Can someone tell Yuzu to stop being self-conscious and hide her breasts? It really bothered me when she attacked him at her birthday and looked like Tamahiko was committing a crime. At least with her breasts she seems older enough. Tho she could had grow a lil bit taller proportionally to him.