After losing her husband, Megumi raised her son Mitsuoto alone. As Mitsuoto grew into a man, Megumi began to feel not only pride but also deep anxiety. She realized that in dedicating her life to him, she had gradually lost touch with her own identity as a woman, and this suppressed desire intensified each day. She found herself masturbating frequently, yearning for something deep inside. Witnessing her state, Mitsuoto unexpectedly takes action. His decision ends up challenging the very nature of their mother-son relationship, reshaping it in ways neither expected.