Captured by a host, big-titted nurse Miina Wakatuki, a wicked woman who keeps switching clubs but can't stop reaching out to hosts despite her mounting debts, is found during her shift and forcibly turned into a submissive female slave. Imprisoned in a cage, she's forced into hardcore service for an ugly masked host, then made to continuously squirt while restrained in a threesome. Further bound in a fixed spread-eagle position and tortured with a vibrator, Miina's nightmare only spirals deeper.