"M-Mom!!" A dimly lit basement. A emaciated man's face is held between huge breasts, chained together. Breast milk spurts out of the woman's nipples, flies through the air, and splashes onto the man's face. The man screams and loses all his strength. Next to him, a woman covered in breast milk and juices is in ecstasy. Kyoko Sano is a single mother who has been raising her only daughter, Marika, since her husband passed away. She produced a lot of breast milk from a young age, so she nursed many children as a wet nurse. When she told Marika about this, Kyoko told her that one of Marika's seniors, Ite Fuuji, was her former wet nurse. Fuuji still adores his wet nurse, Kyoko, and can't forget her huge breasts. To Marika, Fuuji is a satisfying partner, a little unreliable but kind older brother and boyfriend. Then, one day, when Fuuji visits Marika's house, he meets his wet nurse, Kyoko, for the first time in a long time. "Oh, it's been a long time, Fuuji." She hugs Fuuji out of nostalgia and her huge breasts touch her face. A shadow enters Fuuji's room where he stayed late at night. Kyoko is naked, illuminated by the moonlight. Her huge breasts are thrust out in front of Fuuji. "My cute little boy, suck on it quickly." "Mom, I missed you." Fuuji bites her breasts, licks them, and sucks on her nipples. "Ahh, if you do that... that's not good..."!!