The descendants of mankind, born in the labyrinth and raised on the milk of monsters, possessed special strength and strong bodies. When they returned to earth, mankind referred to them as dungeon babies. Among them, Kim Jinwoo was born in the deepest labyrint

After having his Dantian destroyed and being abandoned by his noble clan, Woon-Hwi is forced into servitude by the sinister Blood Cult. Forced to work as a low-ranking spy infiltrating Murim factions, he meets a brutal end during a mission to locate the legendary "Sword Immortal's Codex." But death becomes his rebirth - Woon-Hwi awakens 10 years earlier, on the very day of his kidnapping, now gifted with the mystical ability to commune with blades.

Chung Myung, The 13th Disciple of the Mount Hua Sect, One of the 3 Great Swordsmen, Plum Blossom Sword Saint, defeated Chun Ma, who brought destruction and disarray onto the world. After the battle, he breathes his last breath on top of the headquarter mountai