At a class reunion held for the first time in ten years, Fuka catches up and laughs over old memories while secretly searching for her ex-boyfriend Yusuke, her first love. Even after getting married, she has never fully let him go. Yusuke is equally captivated by how beautiful and mature she has become. Back then, they drifted apart without ever embracing or even holding hands; now they meet again as grown, married adults. Their unfinished first love returns, drawing them into a mutual affair and passionate sex.