In the modern fictional world, there is a different-dimensional space called "Void Realm". Human society discovered the summoning system a hundred years ago and formed a social structure with summoners as the core.
Summoners are divided into ten levels from Black Iron to Holy Domain, and they can form contracts with alien creatures through summoning arrays. The colors of the summoning array runes correspond to different ranks, and black represents taboo existence.
The five major chaebols control the Summoners Association and monopolize the knowledge of high-level summoning techniques. Civilian summoners need to rely on the chaebol to obtain promotion resources.
Lin Ye, a civilian boy whose parents both died, accidentally summoned a sealed nine-tailed demon fox during his 16-year-old awakening ceremony, causing shock to the association's top brass.
The blood-colored pendant hides the research notes of his parents, revealing the connection between the nine-tailed demon fox and the "Dark Moon Incident" twenty years ago, and involving the doomsday prophecy of void erosion.
