The girl was bound with her hands behind the back.A chain ran between her legs and Her feet were shackled.At first, she wore high heels. Her vagina was not so painful.The trainer going to play a puzzle game with her.He took off her high heels first.Every time she answers incorrectly, the chain will be tightened.When she answered a few wrong questions, she could only stand on tiptoe.She began to moan helplessly, but it was his punishment.