Miki Shibuya experiences complete outdoor exposure for the first time. Filled with embarrassment, she gradually removes her jacket and skirt, baring her breasts. Her whispered confession, "I'm really ashamed," only heightens her passion, and soon she stands completely naked. Unaware of the nightmare awaiting her, excited men lose control and mercilessly assault her, subjecting her to consecutive rapes. As she is repeatedly penetrated by strangers, her agonized screams echo through the open air.