Doctor Exiao is shocked to see that his disciple has managed to achieve the level of zhu jin. He says that if he had not held back, elder Xu would have died because of him. He tells the brat that dagen is his disciple, and that he will never harm brother Xu. The brat says that he was trying to save elder Xu instead of killing him. Exiao apologizes for his subordinate's mistake, but he promises that if they fight for real , they will kill each other. The uncle tells him to borrow his silver needles. He asks if they can use the supplement to restore elder Xu's health. Doctor exiao says that when he uses the supplement, he is healing people, not causing harm. He then shows the uncle the stomach of elder Xu, which he seals with a mixture of his own blood and that of the bug. The Uncle says that the bug is evil and that it is a weapon that is used mainly by someone. He wonders if he can use poison control technique to control the bug, and wonders if Dr. Zhao did not want to leave hints about his identity