Inukai, a second-year high school student, lives an ordinary life, hiding from his friends the fact that he has no interest in girls. But one day, Inukai's eyes are unconsciously drawn to Usami, a classmate. A cool, androgynous beauty who should seem unapproachable, but for some reason, Inukai can't help but be drawn to his presence. One day, on his way to a cafe with his friends, he witnesses Usami entering a back alley with a stranger, and Inukai follows him... and what he discovers is far beyond anything he could have imagined. "We're seriously gonna have sex here?" Usami pulls down the man's pants and starts doing naughty things with him--!? What?!