Demon in Mount Hua

The Murim's public enemy, the Slaughterer Demon Monarch, Se-ak Yeom! It's been a hundred years since he was trapped in Mount Hua after being captured by the Sword God Ho Han. He waited all these years for his chance to seek revenge... The long period of time caused this incident to be forgotten by the world, and eventually, even the Se-ak was forgotten. However... "Sir, what is your name...?" A coincidental meeting, and the name of an archenemy that he said unwittingly, "H-Ho Han." At the end of a vain journey, an unexpected path branches out. The ultimate demon that's in Mount Hua, Se-Ak Yeom's choice! (Source: Kakao Entertainment Corp., translated)