Kotomi gave birth to a long-awaited baby girl six months ago. Her husband, three brothers, and her family, which was all men, were overjoyed. Kotomi, who had returned to her parents' house after a long time since she had been raising her child, enjoyed breastfeeding sex with her husband. The next day, her second son asked her to drink her breast milk, so she had no choice but to breastfeed him, but at that age, the desire of a boy cannot be satisfied by breast milk alone... And later, the other siblings found out about it.