I'll be extremely disappointed if Kodaka doesn't have a really heavy reason for his actions. Something like a former girlfriend dying in his hands, and Kodaka blaming himself at least partially and thus he wouldn't easily trust himself with another girl. But then again, those people are so weird that it's it'll probably turn out to be some vague mental issue requiring psychiatric help to fix, not a school club.

Still, at least the last eps weren't totally stock harem. A lame reset of a last episode wouldn't surprise me, but I hope it won't be like that, against all odds.