Hiroka lives with her son Kenji on her husband's only mission. One day, Kazuya, my son's classmate who visits my house... Kazuya, a bully who has noticed Hiroka, invites her innocent sympathy and pushes her down when she sees a gap. Hiroka's body, which became frustrated before I knew it, evoked me the joy of being raped. Before I could understand it, I fell into the power of a youthful meat stick, forgot that I was my son's classmate and indulged in secret pleasure.