Her husband Fumiya, who works as a manager, has two subordinates, Sano and Tezuka, come to celebrate the birth of his daughter. Miyuki, the wife, entertains them as if to express her gratitude, but after giving birth, her breasts are overflowing with breast milk, and she is quietly expressing milk in the kitchen, wanting to do something about her swollen breasts. She has no idea that her husband's subordinate is watching her... Later, when Sano comes to pick up something her husband forgot, he starts sucking on Miyuki's nipples. Miyuki resists as she squirts breast milk, but her nipples, hungry for a strong stimulation, start to react...