The Flower and the Snake 1

In the middle of the city, there's a secret show where perverts gather to watch splendid and shocking sexual performances... and shy housewife Shizuko has somehow found her way to the stage, her slim body and big tits bound in a rope harness under her kimono. As a masked man squeezes her boobs and rubs her clit in front of the packed audience until she unleashes a flood of pee on the stage, Shizuko thinks back to the events that led her here. It all began the day her tsundere stepdaughter Keiko was drawn into a local gang's naughty scheme?