Part 1: A submissive male is completely humiliated by four Mistresses in their private schoolroom. He is subjected to excruciating pain as they whip him mercilessly and trample him with their sharp high-heeled shoes. One of the Mistresses urinates in his mouth and defecates, forcing him to consume the waste. The Mistresses are extremely strict, and the submissive male is helpless but to follow their commands.