White stockings: Escape Challenge (Part 2)

Description: During these recent attempts to develop yumeng, yumeng always claimed that he could solve it, i am quite confident in my tying technique, and it's impossible to untie it. thus, we have today's work. 1. unlock the upper body within 30 minutes. 2. use a different tying method to untie it within 30 minutes, otherwise it will be filled with yj and 3. since the task hasn't been completed, there will naturally be punishment.