After encountering a supernatural incident, college student Chen Mo accidentally awakens the memory of the underworld judge in his previous life. His yang life has expired, and he must save seven mortal enemies (enemies and ghosts in the present world) within a hundred days, otherwise his soul will disappear. What's even more troublesome is that the former rivals took action after hearing the news. Some begged for immunity, some set up assassinations, and Lu Li, a ghost man, appeared to be helping, but in fact he coveted his pen. When Chen Mo was trying to save Sister Zhao's debtor husband and solve Lao Suntou's ghost-raising conspiracy, he discovered that his death in his previous life was actually a shocking scam - someone in the upper echelons of the underworld wanted to use his hand to subvert the order of yin and yang.