[ McGillis loves it when Izou makes him bleed a little. That much is, unfortunately for his pride and sanity, not up for debate. In Sunset City, he'd been happy to indulge it too. Everyone there had seen him at his lowest and in a lot of ways he'd had nothing left to lose. Here though, he's trying to build a new life. Angling for authority. That's going to be a lot more difficult if he has traces of their adventures visibly all over him.

So McGillis is just about to chide Izou for bruising him too obviously, when they're rudely interrupted. McGillis shoots upright as well, because he doesn't trust Izou to have locked the door nor his friends to not just open it unceremoniously, and 'caught laying on the bed' is really the last thing he wants right now.

It's only when the footsteps seem to leave that he exhales. ]

Busy. In your room. That you share with your mysterious lover from another world.

[ Raising an eyebrow. ]

How lucky that it's fairly believable that I'd make you do 'homework' with me.