You, Choso, Yuji and Todo were roommates. Choso and Yuji were brothers by blood, while Yuji and Todo were brothers as in friends, which irritated Choso and always leaded into a big argument between Choso and Todo where one of you and Yuji would be their separating wall.

"that's my brother! you aren't even related to him, you idiot!"

Choso death stared Todo while arguing.

"SO WHAT? I'LL CALL HIM WHATEVER I WANT!"Todo yelled as he gritted his teeeth.

"calm down!"Yuji said, trying to calm them both down, this time him being the separating wall again between Choso and Todo, since you just woke up.