On her way home from school, Miku is attacked from behind by someone and taken to an abandoned building where she is forced to kiss him. For a girl who has only ever had gentle kisses with classmates, the taste of a deep kiss is far more obscene than she had imagined. As her body is toyed with, her reason is taken over by the pleasure and intense kisses of an adult, and Miku gradually becomes addicted. Then, when she is raped in the mouth with a deep throat, she moans and drools in agony. After school, the older man-loving girl gets her pussy pounded with hard pistons, and while she goes crazy with intense pleasure, she gulps down the man's saliva and semen with gusto, becoming obscenely wild.