The single mother's son, Gaku, spends his days in his prime masturbating. His mother, worried about him, consulted with her junior and close friend, Mino. One day, Gaku encountered Mino and realized she was the AV actress Hōjō Mai, so he asked for the truth. To hide the fact that she is an AV actress, Mai tried to silence Gaku with sex, but found herself getting hooked on his young, hard virgin cock.
