The class delinquent, Yuga, suddenly asks Teruya out. Unable to turn him down, Teruya asks his best friend Koki for help. So Koki tells Yuga that Teruya's going out with him! Of course, Yuga doesn't believe this lie, so Koki kisses Teruya as "proof" and starts playing with Teruya down there…! Unable to resist, Yuga joins in and a threesome begins!!