Akahane Yu (Nana Komatsu) is determined to change herself into a more outgoing and cheerful person. Her opportunity comes when she moves to a dormitory room after her father’s transfer at work. There she and Haruto (Kento Nakajima) aka “Black Devil” have the worst meeting. The only person who is kind to her is Takumi (Yudai Chiba) aka “White Prince”.