Her eccentric boss, who toyed with her with his flirtatious behavior, is a romantic vampire!? Haruka has transferred to a design firm where her idol, the charismatic designer Kirisaki Reo, works. Haruka was happy to become his assistant, but Kirisaki's unreasonable demands, due to his questionable personality, meant she had to work overtime from her first day. "You're surprisingly proactive. Even inviting a man into the office..." While the two were staying over alone, Kirisaki saw Haruka's blood after she was injured and suddenly changed?! He threw her down on the desk and bit her neck...!?!