Minako is the mother of her real son, Yoichi, and her son-in-law, Takeshi. Yoichi, who is a spoiled child, has not yet been weaned and is still drinking Minako's breast milk. Takeshi, who was shown such a scene every day, began to masturbate with the delusion that he was drinking breast milk. Takeshi, who is not satisfied with just that, finally approaches Minako, breastfeeding ... and even mother-to-child incest. Takeshi regrets this act, but Minako senses his feelings and accepts him again.
