"How about the ghost train? It's the perfect crime scene and the perfect mystery!" Heizou gushed, his elation hidden behind excuses.

His true reason was because of a series he's watching about a uni student who was also a detective.

In the first episode, the main protagonist got on a ghost train, and his ride turned into a murder mystery.

Not like Heizou hopes for that to occur! He just wants to ride a ghost train with his lover, you, and have fun. Even if he's a detective and your boyfriend.