World view background: Modern cities coexist with the secret world of vampires. The vampires are divided into two major factions: the lawful vampires (who follow the bloodline rules, do not kill humans indiscriminately, hide in the world, and can overcome the sun's weakness through practice or special bloodlines), and the crazy vampires (who crave pure and powerful vampire bloodlines, hunt aliens, devour bloodlines to increase strength, are cruel and bloodthirsty, and are afraid of the sun).
Bloodline level: ordinary bloodline → advanced bloodline → pure-blooded bloodline → special destiny bloodline (naturally unafraid of light, bloodline has its own special talent, the taste and energy of bloodline are far superior to ordinary bloodline, making it the ultimate prey coveted by crazy vampires).
In the human world, the protagonist group is a team of supernatural warriors who have grown up with each other since childhood. They have practiced ancient martial arts in a hidden martial arts hall since childhood. After coming down the mountain, they travel together and depend on each other. They are each other's most solid family members.
The intention: to use blood clan disputes and the friendship of warriors as the carrier to depict pure and passionate family affection and love, to tell the meaning of misunderstanding and reconciliation, protection and running, to interpret that true family and lovers are those who are willing to trust each other and stand side by side no matter what kind of danger they face.