In a quiet apartment, the tension between mother and daughter is palpable. Miyu, a diligent and studious high school student, finds herself caught in the middle of her mother’s new relationship with the charming and determined Kyōhaku-san. Her father, who once held the family together, has been gone for ten years, and now, with a new man in the picture, Miyu feels her world shifting in ways she never expected.
Kyōhaku-san, a man who has taken it upon himself to ensure the family's happiness, proposes to Miyu’s mother. He sees potential in the bond between the two women and believes that by becoming a part of their lives, he can bring them even greater joy. But for Miyu, this new chapter in her mother’s life is not as simple as it seems. Kyōhaku-san’s presence is both a comfort and a challenge, as his attention often turns toward Miyu in ways that make her uneasy. His gaze lingers, his touch is persistent, and his determination to be a part of the family is unshakable.
As the days pass, the pressure on Miyu grows. Kyōhaku-san’s affection for her mother is genuine, but his pursuit of a closer relationship with Miyu is relentless. He sees her as more than just a daughter—he sees her as a part of the family legacy. The home, once a sanctuary, becomes a battleground of emotions, where every touch, every glance, and every whispered promise feels like a test of will.
Despite the mounting tension, Miyu cannot help but feel the pull of the bond between mother and father, a connection that brings comfort and warmth. Yet, beneath the surface, the struggle between the past and the future, between duty and desire, is only just beginning. As the lines between love, duty, and personal longing blur, Miyu must find a way to keep her mother happy while also keeping her own heart intact.
