Mia, a mother, worries about her son who has moved to Tokyo to attend university, and visits him once a month to look after him. However, as she visits him again and again, her affection for her son grows beyond familial love and develops into a romantic relationship. "We're mother and son, so this can't be allowed. But the fact remains that I love him. What should I do...?" Despite struggling with the conflict that comes with blood ties, Mia is unable to stop her body aching for her son, and decides to return to Tokyo.