Kaoru remarried six months ago to a man with a child and became the mother of a young son, Atsushi. Kaoru wanted Atsushi to have various experiences while holed up in her room playing games. One day, her husband was gone. Kaoru asked Atsushi. ``Atsushi-kun, you're a virgin, right?'' Atsushi was surprised by Kaoru's sudden comment, but a few minutes later he successfully graduated from virginity. With a brush that feels so good that every man in the world is envious...