Schoolgirl Aia was lured by a volunteer recruitment ad, unknowingly falling into its trap. The place she was led to was a secret research facility specializing in complete female body modification. Helpless against her captors, she was pinned down by men and transformed into a mysterious body that felt pleasure from mere touch. Her new form was entirely under the control of overwhelming sensations. In the subsequent public experiment show, she faced a series of degrading ordeals. Amid embarrassment and humiliation, she lost consciousness repeatedly, yet her body instinctively responded. Drawn into a climaxing hell, wave after wave of relentless pleasure forced the girl to orgasm uncontrollably, her innocent mind driven to complete surrender.