Due to her own infidelity, Kana lives with her son after divorce. However, even after the divorce, Kana continues to bring men home and indulges in sex. Unable to bear seeing his mother like this, her son vents his frustrations during one of Kana's trysts... A young and charming mother and a son entering puberty. Despite his inner turmoil, the son uses his erect penis to give his mother a unique form of sex education...
