The Devil's Sect Is an Undercover Agent. I Signed up to Become a Righteous Saint.

Lin Chen, the most inconspicuous outer disciple of the Qingyun Sect, was sent to the Blood God Sect as an undercover agent for three years with no name. Just when he was about to be sent to the blood altar as a sacrifice, the righteous glory sign-in system was activated! Bite! Sign in at the Blood Altar and obtain the Pure Yang Marrow Cleansing Technique to perfection! [Ding! Sign in at the Blood Clothes Hall and get the Foundation Establishment Realm cultivation infusion! [Ding! Sign in to the Hidden Gong Pavilion and get three thousand righteous magical powers! Everyone thought he was a useless disciple from the bottom of the demon sect, but they didn't know that he held the supreme inheritance of righteousness and was secretly stirring up trouble. The Blood Soul Pill stronghold was destroyed, the demon sect elder died violently, and top-secret plans were leaked one after another... The devil's sect was searching for the traitor from top to bottom, but they never imagined that the youngest of the Four Dharma Kings who had been rising rapidly was the undercover agent they were looking for! Many years later, the ancient blood god resurrected, and the war between good and evil raged. Lin Chen, wearing a golden robe of righteousness, stood in front of the two armies. Immortals of the Righteous Path: "Lin Shengzun's divine power! Defeat the evil path!" Everyone in the Demon Sect: "??? Dharma King, why are you wearing righteous clothes?!" Lin Chen helplessly spread his hands: "Actually, I am an undercover agent."