Eriko suddenly became the mother of three brothers at the age of 45 after marrying a man who had a stepchild. Appearance and personality are three people three ... Eriko was worried about how to deal with her sons. One day Eriko learns by chance that the three brothers are "virgins". Eriko, who is irresistibly fond of virgin cock, immediately took action. Eriko visits her second son Tomoki's room with the mission of "I will give you a first experience that you will never forget as a mother."