The police officer and his brother, the older of the two, arrive at the police station. The older man is named Shuguang, and he explains that he has always been collecting rocks like this. He asks the younger man why he is there, and the older man answers that he is here because he wants to know more about his brother. The younger man tells the police officer that they have guests, and that they must be the police officers, since they are the ones who retrieved the ores. Shuguang says that they suspect that someone has been obstructing the investigation of the mutations cases, and they sincerely apologize. He explains that the ore is the material he extracts from corpses of mutants, and after many experiments he discovers that the mutations are caused by the "radiation" of these ores, even if they are outside the body. He also explains that if they cooperate, they will share the results equally.