Crazy! Let You Go Undercover and Sign in to Become the Demon Ancestor

[The ratings have just been released and will increase later. Gu Qingfeng was ordered by his master to infiltrate the Demon Sect and became a glorious righteous undercover agent. Before leaving, Master repeatedly warned: Hide your identity, act in a low-key manner, and do not attract attention. But as soon as he arrived at the Demon Sect's mountain gate, he awakened the two-pole sign-in system and obtained the Supreme Demon Bone. The supreme demonic energy soared into the sky, and all the demons knelt down to worship him. The entire Demon Cult recognized on the spot that he was the reincarnation of the legendary Demon Ancestor! From then on, Gu Qingfeng's undercover career was completely out of control. He wanted to hide his weakness, but flattened the hill with one punch; He wanted to weaken the Demon Sect, and after the reform, the strength of the entire sect soared; He wanted to let go of his righteous sect members, but was praised as saying that he was taking a long-term approach to catch big fish; He wanted to prevent the two from fighting, but both the good and the devil believed that he was playing a shocking game of chess. Many years later, Gu Qingfeng looked at the demon giants kneeling in the hall, then looked at the top-secret mission sent by Zhengdao, and fell into deep thought. "Master, I'm just here as an undercover agent." "But they insist on making me the leader!" When the abyss opened and the Immortal Ruins descended, the good and the evil finally discovered that Gu Qingfeng, whom they regarded as the unparalleled devil and the shadow of the righteous path, had already become the last line of defense before the catastrophe. Mortal world, soul world, fairy world, this world turns out to be not simple.