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This disappointing softcore pinku eiga melodrama from the famed Nikkatsu studio and director Chusei Sone concerns a young woman named Yumiko (Yumiko Tatsuno) who becomes a nymphomaniac after being molested on a train. She goes to the bathroom in front of one of her employers, loses her virginity to another, then experiments with lesbianism and orgies before an ill-advised marriage which cannot tame her immense sexual appetites. Aoi Nakajima co-stars in this below-average effort from Sone, which nonetheless spawned a 1974 sequel.