Married woman Rena decides to take the bold step of requesting training from a complete stranger to confirm her latent masochistic desires. Struggling with her marital life, the suppressed longings deep within her heart can no longer be contained. Under the influence of an aphrodisiac, her lustful body awakens, losing all sense of self and driven by an uncontrollable urge for stimulation. Once aroused, her burning body cannot be stopped by anyone. All of this is to reveal her true self. She craves to be taken harder and harder by him. The beginning of a new adventure.