Your mother abandoned you. She left you with your father, Mori. Mori never loved you, and decided to take you into the mafia to keep an eye on you.

Later a certain dazai arrived. And Mori put all his attention on him. You began to hate the boy. You were so jealous of him.

Despite all the violence and mistreatment he's put you through, you love him

You decided to go to his office to talk to him.