Osananajimi to Doukyuusei 1

When Miyu is groped on the train, classmate Shun rescues her, teasing and kissing her before revealing it was all his twisted setup. Distraught, she confides in her childhood friend Kou, who comforts her—claiming their past kiss invalidates Shun’s act—before taking her virginity. But Shun’s obsession doesn’t end; he drugs her, breaking her resistance into euphoric submission. Now tormented by desire, Miyu questions her longing for Shun’s touch and Kou’s love, torn between shame and obsession.