A polite son who finds out his mother's sexual desire to be excited by the shameful play starts to train her mother as a nude house maid while making all of her daily life engage naked. Without knowing how his son felt, his mother fell in love with the pleasure of being a woman. The mother, who was awakened by her son and whose dignity as a parent collapsed, sympathized with shame and the pleasure of obedience, and prayed for her son Chiyopo.