Yunoki has not only found himself in bed with a woman he doesn't know, but she insists they're already a couple?! The woman, Kotoka Hatsushima, is a charming, 23-year-old writer...who has one heck of a back fetish, and Yunoki fit the bill! And when she tells Yunoki that it was her hair that sealed the deal for him, he realizes the truth—she knows...