Zuo Dao Cultivating Immortality: a Guest on the Banner of the Human Emperor

I heard that offering sacrifices to the Ten Thousand Souls Banner would harm the world. But if you use an evil cultivator full of sins to sacrifice to refine the Ten Thousand Soul Banner, will there be more merit or sin? Wait, how did this Ten Thousand Souls Banner turn into gold? … Finally one day, the new emperor of Daxia stood in front of Liu Chengyin holding the human emperor flag and ordered him to surrender. Faced with the persecution of Emperor Xia, Liu Chengyin shouted: "Everyone, the golden light of my flag is brighter, so this is the real Human Emperor flag!"