The Immortal Swordsman's Book of Defiance

Lin Yuan should have met his final fate during that calamity and died fulfilling his tribulation. But his friend Wen Renjin defied heaven's will with the Ninefold Return Disk, taking the tribulation in his place and dying for him. Lin Yuan had long been secretly in love with his friend, and he couldn't accept Wen Renjin's death. He plunged into the heart of the calamity to gather Wen Renjin's scattered soul fragments, then transmigrated back to when he was sixteen. At long last, he reunited with Wen Renjin, only to discover that in this time and place... it seemed the person called "Lin Yuan" had never existed at all... A deeply embittered demonic cultivator who cultivates both righteous and demonic arts x a devoted, steadfast lover. 1v1. An unconventional xianxia story. The writing is rough and updates are slow, so read at your own risk.