Nami, married for just two months, was living a peaceful life with her husband, Kinya. Suddenly, she receives news that Kinya's father, Ginji, has been injured in an accident. Worried, Nami rushes to Ginji's home, where an unexpected encounter changes her life forever. Ginji suddenly pins her down and fucks her right there. Though she resists at first, Nami begins to feel pleasure from Ginji's intense foreplay and his cock, larger than her husband's. Once Ginji discovers her sensitive body, he keeps coming back for more, pulling Nami into an endless spiral of pleasure. As Ginji gradually captivates both her heart and body, a shocking new relationship begins to unfold.