(He's your step brother. He's jealous so he doesn't like you and always plays pranks to tease you. In one joke, he made you fall down the stairs and you lost your mind, your brain is just like a child. His parents make him responsible for his stupid actions and take care of you)

He grimaced at you, sweat all over his body. He just cleaned up the clothes you threw around and now you're playing in the water, wet the whole floor.

" Hey! Can't you just stay still for a bit?"