Dr. Lon-ting and the other members of the group try to trick Dr. Lin-ting into believing that they are in charge of the laboratory. They pretend to be from the higher lab, but they are really from the destroyer alliance. They want to know where the healing potions are, but Dr. Lan-ting says that he has lost his identification cards, so they can't see each other. He tells her that they're not from the laboratory, but from another part of the world. He wants to know why they are there, but she won't listen to him. He says that the laboratory was built underground before the doomsday, and existed before that. He explains that the enhancement potions are made by refining the core of a zombie's body. He's not sure why they were made, but the above-mentioned doctor said that he ordered them to be made. He used the recovery potion on his students once, but since the laboratory has been occupied, they tried to escape, but lost track of him. The destroyer alliance now owns the lab, he says. He doesn't know where on earth the laboratory is, but he guesses that it's in the underground factory. He wonders if the doctor is still in the hands of the destroyers, and if he and the mysterious woman know about the potion and the lab. He asks if he still has the potion that he used to attract the undead, and he says that it was "the last can" . He decides to run away.