Incubus Syn has come up from the underworld to try to get his target for his advancement exam to climax. Despite his disheveled appearance， his target， Aoi Kono， is incredibly difficult to satisfy. Syn wonders if Aoi is really going to be that much of a challenge... Just as he’s thinking about him， Aoi passes by him on the street， and Syn succeeds in dragging him into a hotel. Once there， Syn tries everything he can to get Aoi in the mood. Syn’s strategy backfires and Aoi ends up making him climax endlessly...! Is this the beginning of an incubus pushing his way into an adult actor’s life!?