On the night Qingzhou City fell, Mo Han fled through a bloody battle with his eight-year-old sister on his back. But from the Nine Netherworld Veins awakening within him emerged a sharp-tongued ancient sword spirit.
"Fighting should have style!" Silver-haired Xuan Xiao taught him swordsmanship while standing on an enemy's head. "The way you do that move to skewer frozen wolf meat looks uglier than the fish-head chopping at the Drunken Immortal Restaurant."
To protect his little sister Mo Li, born with the bloodline of a Flame Phoenix, Mo Han freezes a thousand miles with the Frost Sword Qi in his left hand, while the remnant soul of a demon sword devours the heavens in his right. The four great sword sects come after him? He turns the Heavenly Ghost Sect Master's coffin lid into a slide. An ancient secret realm full of treasures? He ties divine beasts up with an Immortal-Binding Rope and uses them as sled dogs.
On their laugh-out-loud escape, the sword spirit keeps turning life-and-death crises into slapstick scenes:
"Your mother once stole the Demon Venerable's underwear. That's worth three spirit-stone mines!"
"Stop licking the sword! Those candied hawthorns were frozen with my sword qi!"
Only when the Nine Netherworld Veins devour the final seal does Mo Han discover that the person who sealed Xuan Xiao in ice three thousand years ago... was actually his own mother, reincarnated a hundred times.
The bond between ice and fire will ultimately burn through this absurd world where the sword reigns supreme.