In b4 'pranked you!'
That said, I dislike Yugami-san's aversion to human form Ryugasaki-san. Something about the way he's written in that regard that really rustles my jimmies.
They are still... in the middle of a hallway... in their school... in the middle of the day. I don't think "if" they're going to be cockblocked, it's "when". Also Yugami definitely needs to show some love to human Ryugasaki. Yes we are all here because we like monsterf*cking, but don't be making her sad!