Mizuki Hayakawa, coerced by her friend, agrees to play her ex's temporary girlfriend to deter his relentless pursuit. Shinji Oozawa, her friend's ex, is suspicious and pushes the boundaries, making Mizuki kiss him, grope her breasts, and ultimately, demanding she fuck him. As they engage in passionate sex, Mizuki is conflicted, torn between loyalty and desire, her soft moans echoing in the room as she rides his cock, her tight pussy clenching around him.