In place of his traveling parents, Nina, his mother's best friend, is taking care of him. She has a sternly beautiful face and an explosive body that captivates everyone. She doesn't pay any mind to Hiroshi's intense gaze, exuding the composure of an adult. Hiroshi falls for her instantly and desperately tries to create a good atmosphere. However, to Nina, he is just a child. In desperation, Hiroshi resorts to stealing Nina's underwear. Seeing Hiroshi's mischief as endearing, Nina says, 'You're hopeless. I'll specially teach you a secret place that women love,' and gently embraces him...
