Hello all,

I'm hoping someone here can help me find a hentai manga I lost in a drive crash.

It's about a guy who hasn't had sex with his girlfriend because he thinks she's too perfect. Later he catches her having sex with a couple of guys to help keep her grades high. He of course is crushed but then disgusted with himself because he finds that the thought of his perfect girlfriend sleeping with someone else turns him on.
They later go to the beach with friends as was planned earlier and he has her have sex with another guy who thinks he's having a dream. This gets him turned on then they have sex and she still loves him so doesn't care as long as they can remain a couple.

I've looked and looked and can't find it anywhere. Thanks in advance.