Mistress Risa, a stern Japanese nurse, dominates her masochistic patient, Kazu, in a degrading medical treatment session. She tramples his body with her stockinged feet, forces him to perform a humiliating handjob, and finally, sits on his face, smothering him with her power and authority. The scenario unfolds with a blend of laughter and seriousness, as Kazu embraces his submissive role.