Calling it "intensive training," a perverted teacher toys with female sports club students one after another in a brainwashing room. It starts with a scene where they're forced to piss into a goldfish bowl, have their anuses probed with anal balls, and made to hold those balls in their mouths. A student on all fours on a table gets a thick dildo shoved in and is eventually given an enema. Some are bound in a spiderweb pattern with low-frequency massagers attached, getting electrocuted, while others are hung upside down with candle wax dripped all over their bodies. A girl with a nose hook and clips on her crotch and nipples has them whipped off by a master. Another is hung upside down from the ceiling and used as a target for blow darts. One is put naked into a cage and drenched with buckets of water. After forced urination in the bathroom, she's tied to a table and has both her ass and pussy attacked with a vibrator. A student bound to a chair is forced to piss via catheter, and multiple needles are stuck into the ass of a girl on all fours. Finally, a girl is taken outside in her uniform and given an enema. It's a relentless series of training at the hands of a sadistic teacher.