Yu Akahane (Na Na Komatsu) moves to some dormitory room after her daddy's transfer from work. She is excited that she will dwell in precisely the identical dorm as Takumi Shirakawa (Yudai Chiba) aka"White Prince." Yet, Haruto Kurosaki (Kento Nakajima) aka"Black Devil" kisses her punishment for moving against him. It is Yu Akahane's first kiss. Ever since then, she becomes obedient to Haruto Kurosaki.