During her high school days, Aya Tsuki no Nozomi was the manager of the baseball team. Aya Tsuki no Nozomi was in love with the captain of the baseball team, Kasajima, and even though she mustered up the courage to confess her feelings, she was not reciprocated. Seven years later, Aya Tsuki no Nozomi has married and built a happy family. However, by chance, the two of them meet again. As if they were back in high school, the distance between them naturally grew closer. And the pure feelings between the two of them knew no bounds, and despite the guilt, they crossed the forbidden line...