Marin is just an average timid girl, who one day meets a pretty girl in the classroom… except the girl's actually a ghost; a rather outgoing ghost that possesses Marin whenever she feels like it!
Wakaba fell in love at first sight with a boy called Sou at the entrance exam day. She decided to chase him to a dormitory, but turns out that dormitory is built to fall in love!! Not to mention, anyone who become a couple will receive 100 million yen!
This is the start of a dormitory-only love game involving six people!