Li Cangyun, a half-demon with Qiongqi bloodline, unexpectedly forms an alliance with Su Yingluo, a girl who guards ancient secrets, due to fragments of the chaotic soul. He is in charge of the Lord-devouring and Fierce Soldier, and she carries a lantern to lure evil and break obstacles. One person and one demon travel through the magnificent wilderness like "The Classic of Mountains and Seas" to recover the fragments that caused the disaster. The sword light that swallows all the demons meets the ancient lamp that purifies the world. This transaction that started with profit will eventually become a legend that illuminates the Nine Netherworld.
