First of all you retarded cocksuckers this is manga not doujin. Learn the difference. Second of all you have to be really retarded with an iq of shoe size to say that everyone loses here. Seriously are you really that retarded? Sensei is obviously the winner here and gets all the dicks . And the delinquent guy didn’t lose either as he wasn’t in a serious relationship with sensei but he simply used her as his fuck toy and he can continue to do that . Not to mention it was him who pushed sensei to have sex with the other guy and it’s even implied he will fuck the other girl at the end. Ending is too abrubt anyway and a sequel should be made imo.