A university student named You Shirasane is living with his lover, a skilled police investigator named Kaito Iwanami. You lives everyday romantically, despite struggling to deal with Kaito’s horny-old-man way of speaking. Then one day, You receives a movie ticket from the manager of the hotel where he works and takes Kaito out on a date. But during the date, Kaito gets shot! Was it all a trap set by an evil criminal who bore a grudge against Kaito?!