Kazuya can't control his joy when he hears that his mother's friend, Umi, who taught me how to study when he was a student, will return home for the first time in a while. The reunited Umi is more beautiful than before ... Kazuya, who still seeks more secret feelings for her, has a relationship with her too much. Kazuya, who has lost his temper, continues to be swept away by his lust and seeks enthusiastically. However, she says that such an extraordinary relationship cannot continue.
