A private school in Gansu. The prototype of Ren Jing University in Lv Deshui is a private school in Gansu. The prototype of the story of the donkey's water comes from a real event. A private school in Gansu needs to raise a donkey to carry water because of water shortage, but the money for raising a donkey doesn't know where it comes from. Just as a private tutor left, they lied about a private tutor-getting water from a donkey.