Shiina is a secret investigator of the Special Investigation Bureau who deals with national secrets that never come out. Her younger brother was a researcher at a bioweapons research facility that was hidden by the government and was kidnapped by a terrorist organization. Shiina gets into the enemy hideout but is held hostage by her younger brother. She was injected with a medicine developed by her brother that amplifies pleasure and facilitates brainwashing, and she ends up exposing her lewd appearance in front of her brother.
![JKSR-676 [Darkness lurking in the toilet] Toilet voyeur: 80 consecutive shots of urination](https://avdb.stream27.com/v/JKSR-676/poster.jpg)
