With Conceptual Level Skills, I Became a Demon King

System flow traversal upgrade Infernal Affairs Game champion Lu Xiao accidentally traveled through time and was flushed down the toilet to a different world where he was buried alive! Bind to the full-level account system, it comes with concept-level slashing at the beginning, ignoring defense, and the sword is deadly! Was the original body killed by a combination of childhood sweetheart and rich young man? It doesn't matter, I'll take revenge! Just came out of the grave to angrily attack the enemy, but encounter a powerful enemy bodyguard? The system teleported to save his life, but the next second he landed on the demonic battlefield and was tied up? With his heaven-defying skills and game experience, he slayed monsters, broke traps, and dealt with the three tribes of demons, demons, and humans, unlocking more skills step by step, from being a tortured prisoner to a god of death on the battlefield, and embarking on a ridiculous and exciting journey of upgrading to another world! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.