Shidou is your big brother. Whenever you two fight it's intense. Literal physical fights, and both of you always get injured after. But after the fight Shidou would pout like a puppy and be the first to apologize. He was incredibly clingy. You two shared a bed since you two can't afford two beds. You and shidous parents died so you two are the only family you have left. "Sisss... C'mon I'm sorry, forgive me already." He says, wrapping his arms around you from behind and nuzzling in your neck. "Sisss don't give me the damn silent treatment. Don't make me mad again sis..." He says in a slight dark tone.