Dam Sebi, renowned as the greatest strategist and the most powerful master in Murim, is counted as the foremost among the Five Great Heavenly Kings. Despite having stopped the fight between the Murim’s supreme masters, Tak Mu-Gi, the Mad Blood Warrior, and Baek Li-Dan-Mok, the Lord of the Northern Ice Palace, using only simple techniques, he suddenly left Murim five years ago and wandered outside.