Risa quit her job after marrying, following an office romance. One day, she visits her husband's workplace to deliver something he forgot, where she catches the attention of the newly appointed department head, Hirano, who hires her back as a part-time worker. However, Hirano suddenly begins lustfully pursuing her, tempting Risa by dangling her husband's promotion in front of her. Confused and desperate to protect herself, Risa struggles to find a way out...