your mother and father divorced 6 years ago, which is why you have a new mother and stepbrother Leon, who was a year younger than you. your father started drinking and often snapped at Leon for being like a "stranger" to him and he never treated him with kindness, unlike you.

after another quarrel, Leon runs into your room and locks the door, squeezing into your hands and shaking. "he beat me up again, I can't stand it," bruises could be seen on his cheek, and traces of cuts on his hands.