In the old *** building, Lisa is helplessly chained and unable to resist the carnal advances of Fumiko, Naoki, and Onikuma. Lisa, given the aphrodisiac, becomes the next victim in Onikuma's sinister plan. While Daina is on a date with Mimiko, Mayu becomes the last victim, as Onikuma *** her to make her his ultimate slave. Unaware of the dangers in Lisa and Mayu's lives, Daina continues his date and ends up taking her virginity. How will Daina save the girls from Onikuma? Will he be on time to save Mayu?