I'm with Mentar. If I was Juinchi, I'd purposefully get into trouble with Ayatsuji just to see that cute scowl.
Edit: After finishing up Mashiroiro Symphony, a series with a refreshingly cool male lead, it sort of sucks to return to a guy who doesn't deserve any of the amazing girls surrounding him. Luckily Juinchi is so amazingly fail that it's comical and I can get a laugh out of it.
Plus, I'll give him points for getting Ayatsuji to take those poses.