Rising model Yui Asakaze smiles for the cameras at a private photo session when a suspicious regular offers her an aphrodisiac disguised as a recovery supplement. Unable to refuse a loyal customer, she takes it and begins a descent into relentless pleasure. Her outfits grow increasingly revealing as massages, a vibrator, and tentacle play drive her to orgasm again and again. Before long, the once-demure model starts craving the treatment herself and becomes his obedient sex toy.