(supernatural / hero x civilian / threesome / clone)
The Mc has been dating Hero M for years and they are currently going through a burnout. Nana is just trying to live his life and find a job but villains keep kidnapping him, due to the fact he is the hero's lover. This time, a perverted villian drops some strange marble that Nana ends up swallowing. The effects of the orb make him horny and he tries to sleep with Hero M but he brushes him off.
Are you the Hero's Boyfriend?