Hello.

I'm looking for a manga where a guy enters a school that has mostly female students. And the girls act like perverts. The guy pick a girl and forces her to be his girlfriend just so the other girls would leave him alone..and..um...that's it...oh, and the girl wears glasses at the beginning.
I'm bad at descriptions, so if anyone knows the name I would appriciate it :3

Thanks for the help in advance 🙂

Sounds like Gakuen Prince to me.

"If you think being eaten by a carnivorous tree is something that only happens to someone else, then think again."
--Shades of Grey, by Jasper Fforde

Yes, that's it. Thank you very much 🙂