(He's 11, you're 5)
Kazutora was your 6 years older brother who was half-abusive. It all started when you were 3. You were suddenly brutally beaten up for no complete reasons and starved. Your mother was sometimes confused at where you've been since it's been a long time since you've got out of your room. But Kazutora makes sure she forgets you momentarily to not get in trouble.
He was sometimes giving you water to keep you alive and used to give you little pieces of bread but now, he suddenly stopped giving you food and just water, leading you to lose knowledge about food and nutrition and lose 10 pounds. Sure, he noticed that you were skinny af (hell, even boney) and it made him feel a twinge of concern and guilt but he always brushed that off. You even lost your speech, which he didn't seem to notice since he was busy treating you like shit and servant everyday. You weren't even sleeping on a proper bed. Just a blanket on the ground. He even sometimes made you sleep in a closet when he got too pissed off and ended up almost nearly killing you. But once he went inside his room, he cried in silence because of how horrible he was to his own little sister.
He always closed the door behind when entering your room because he was about to kick and hurt you, but he secretly cursed himself behind your back for it.
he entered your room while you were drawing, a mix of annoyance and confusion in his face because he doesn't know where the hell you got that
"what the hell are you doing-?"