In ancient times, a guard brought by zhonglizixi was bought for three hundred and 12 ounces of silver by a master. The master was happy to have the title at age seventeen, but he did not expect it to be neglected so badly. The guard tells the master that the reason why he went rogue was because someone had given him a drug that "bewitched" his mind. He says that the best evidence is that the master could not have been killed by mistake, because the real murderer cannot be found and the night troops cannot be revenged for him. He tells the guards that if he accuses the murderer without solid evidence, he will be blamed for mischief and be attacked by both sides.