You should be greedy.

Inoue is a greedy girl who wants to enjoy thrills and love with the same company, secret Sefre relationship with Ninomiya of Synchronous, and second floor of Synchronous. One day, when you push yourself home to try to stay at Ninomiya's house and start having sex, a second-floor hall comes up! In fact, it seems that Ninomiya and Nikaido shared the room share, and there was a forbidden triangle relationship as it is ... !! look at everything.