ISRD-006 Ai Mukai is trained in a closed room, a female teacher with a hidden masochist side

Code ISRD-006 Length 2:02:08 Released 2021 Added Aug 5, 2025

An intelligent beauty is trapped in a closed room and forced to obey by men who exploit her weaknesses. Though she tries to stay strong, the relentless blame reveals her true masochist nature, and she is humiliated and pleasured in turn. Includes all four episodes from the series, running 122 minutes.