Laki is an incubus on the road to graduation from demon school. His graduation assignment: make the target fall in love with him without revealing confidential information regarding the demon world, including details of the graduation assignment. His target: Aoi Shiiba. Posing as a homeless person, Laki manages to have Aoi invite him to his house. Things seem to be going well, and Aoi easily agrees to Laki's offer of sex. But it turns out, Aoi is too good at sex that Laki's identity as an incubus was exposed. Adding to the problem, Aoi sleeps with every woman who offers. Will Laki be able to make Aoi fall for him? (Source: futekiya)