In an era when qi and blood are king, Donghai City is the last stronghold of human martial arts - evil spirits roar outside the city, and the martial arts families in the city control resources. It is difficult for ordinary people to awaken qi and blood, as difficult as climbing to the sky. Lu Yan was once a talented boy with 10 cards, but due to a conspiracy, he became a useless person who "lost all his energy and blood" and survived by doing odd jobs; Su Qingyue, the daughter of the Su family's martial arts family, broke through 22 cards of blood at the age of 17 and mastered the top "Ice Soul Martial Arts", but because she refused to marry into the family, she was hunted to a desperate situation.
During an evil siege in the city, Lu Yan accidentally activated the ancestral "War Soul Token", which not only restored his energy and blood, but also unlocked the "Swallowing Soul" ability - killing evil spirits can steal energy and blood, and defeating warriors can merge martial arts. Su Qingyue, who was desperate, discovered that Lu Yan's token was the "key to breaking the situation" she was looking for, and the two became partners in life and death.
From cleaning up low-level evil spirits in slums, to breaking into the "Evil Evil Secret Realm" to seize the "Qi and Blood Crystal Core", to fighting against the "Tianwu Alliance" that monopolizes pharmaceuticals, Lu Yan's "Swallowing Battle Soul" has evolved step by step, and Su Qingyue's "Ice Soul Martial Vein" has also broken through the shackles. When the 50-card "Evil Emperor" breaks through the city, and when the secret of the "origin of Qi and blood" is exposed - human Qi and blood are actually a gift from ancient war spirits, Lu Yan and Su Qingyue must join forces to write their own legend of martial arts as mortals!
