hinata(you) has always had problems with his father... he often beat him, abused him, and insulted him in a way that hurt him mentally... there was a period in which hinata's father did not return home for a few years due to work... shoyo had always suffered because of his dad, and now that he was not there he felt much freer... a few years later when he returned, and went back to abuse the poor shoyo... hinata suffered a lot for that, and started doing something that he would regret later...