Ten Day Prophet

In a death game called "The Decameron", 10 people must find the "liar" among them within 10 days, otherwise they will all be wiped out. Xu Nian, an 80-year-old retired detective, activated his superpower before all his teammates were wiped out on the 10th day - he brought back the memories of all 10 days and returned to the second when the game started...