He never thought he would fall in love with his friend's mother, Natsuki. His heart beats with excitement as Natsuki unashamedly exudes sexiness. However, the woman he is in love with is his friend's mother, and she is already married. If his love is not going to come true, he wants to at least have beautiful memories of the relationship. Kawagoe sneaks off to check on Natsuki, hoping to burn her beauty into his memory. However, he comes across Natsuki's unexpected secret.