Aunt Kaori begins to feel an intense attraction toward her nephew Yuki after moving in together due to work circumstances. Ever since becoming aware of his presence, her days have become filled with erotic longing. Kaori subtly drops hints about love, trying to stir Yuki's emotions. Though Yuki is deeply affected by Kaori's lustful behavior, he struggles to maintain self-control. However, one day, Kaori discovers him masturbating and he is instantly pushed to the edge. Seizing the moment, Kaori starts sucking his cock, completely capturing his heart. Overwhelmed by an unstoppable wave of pleasure, Yuki finally reaches his limit and can't hold back any longer.