I own a soroban and I'm not afraid to use it! What's a soroban? This is a ridged (shin) trtr board made infamous by ishidaki. What's ishidaki? This is a form of trtr where a bound person is made to sit, kneeling, on the soroban. Then heavy weights are places on the persons lap. Also see the RopeMarks illustrated glossary: https://www.ropemarks.com/glossary/ishidaki-sorobanzeme/ We are lacking the weights therefore I put the shady lady through a soroban session instead of an ishidaki session. Not that it matters much, the excruciating pain she had to endure did not make me miss the weights. But, to add to the experience, for the both of us, occassional slight pressure on her legs is applied. Progressivly I intensify her ordeal by making sure she is tied upright to the hashira behind her. This giv es her less space to seek (relative) comfort. Clamping her tonque, because we can! Finally tying her neck to the hashira, this makes her upright position very strict and adds a touch of breathplay (as if her suffering wasn't more than enough already). This video is shot in one take with multiple cameras, the only editing is switching between the camera's. You get the see the full process of the shady lady enduring the soroban for over 15(!) minutes! This is real, intens and extremely beautiful! Note: We had a choice, shoot this with or without music. Without music would create a different video capture but we love our beats and play really well with them being present. So you get to hear the beats that we love to play on!