Erina, a lactating woman who loves Masaki too much, and Masaki, who cannot live without Erina's breast milk. Both successfully passed their university entrance exams and headed straight to a love hotel in the middle of the day. After half a year of abstinence, their sex life was unlocked, and Masaki, who loves breast milk, greedily latched onto Erina's breasts. The perverted couple with strong kinks repeatedly sought each other out and reached climax.