The master Xia Ye was captured by the system and traveled to the urban fantasy world of pirated "Liao Zhai". He became the uncle of the outstanding but unloved second female lead. He encouraged the second female lead to stay away from the scumbag and the willful heroine. He also had two or three incidents with the villain that I have to mention.
Purpose: To establish an orderly system in a disorderly world, so that villains can also have their spring.