After enduring a cruel rejection based on her looks, Sunako Nakahara withdraws from society, embracing darkness and the macabre. Her seclusion ends when she moves into her aunt's mansion, only to discover she must cohabit with four stunning young men. Tasked by her aunt to transform Sunako into a refined lady, the boys agree to this challenge in exchange for free lodging. Amidst the chaos, Sunako navigates her new life with the brash Kyohei Takano, the charming Ranmaru Morii, the composed Takenaga Oda, and the amiable Yukinojo Toyama. As she interacts with them, she begins to see beyond their exterior and realizes she might not be as much of an outsider as she believed.