I find it hilarious that this is just barely perversion of canon. Xingzai clearly has some kind of stalker-with-a-crush thing going on with Karin.
*I've already gotten so ▓▓▓▓▓▓▓...*Karin-chan and Xingzai ♥ banging on the wall ♥That's great, that's great. Karin-chan is the best!...Don't touch me, you scumbag.