Unofficial history may not always be accurate, but it's definitely wild! According to such folklore: Back in the day, Zhou Yu lay in a coffin pretending to be dead, leaving only a small hole in the coffin to avoid suffocation. The purpose was to test whether Zhuge Liang could see through his fake death plan. If Zhuge Liang didn't see through it, it would prove that he was more skilled and superior to Zhuge Liang, and he would have people hiding in the dark kill Zhuge Liang;