Victim number four arrives at the oil massage parlor where consciousness flies away: Akiyoshi Shuri. Repeatedly reaching climax with her back arched due to aphrodisiac oil, her abdominal muscles collapse, and her slippery body spasms uncontrollably!! Restrained and imprisoned to ensure she cannot escape, a non-resistant sensual development massage until she becomes defenseless!! Continuous ecstasy turns her sensitive body into a mush, and she is subjected to endless internal sex!!