Magyoiljin 

Oh, I'm the strongest demon cult member of the Nine Heavens, but I know how to return to the demon cult. The absolute being who trampled the martial arts world and reigned at the top, Gucheon. He was the one who led the Demonic Cult to its peak, and to the Jeongpa, he was called the Heavenly Demon itself. The last Demonic Cult war fought by all the martial arts sects including Goopa. After a fierce battle, Gucheon was killed by an unknown being. The moment I thought it was all over... I opened my eyes not in the martial arts world, but in a weak body in the modern era?! "What is this...? This strange place?! Send me back!!" Gucheon descends into the modern era...!!