In this world, there exist seven races: the Human race, the Elf race, the Beastman race, the Icefolk race, the Angel race, the Demon race, and the Youkai race. Magical power varies among the races, and each race has a single supreme figure known as the “Emperor.”
“The Seven Emperors”
They are more than mere kings; they possess the strongest magical power within their respective races and serve as symbols of their entire peoples. The Seven Emperors gather regularly to discuss global affairs and inter-racial issues.

〈Human Race〉Fire magic (used for attacks and blacksmithing, etc.), Earth magic (manipulating soil and rocks). Lifespan is roughly 70–100 years—relatively short among the seven races. They have a highly developed culture of preserving technology and knowledge in written records.

〈Elf Race〉Plant magic (growing and manipulating flora), Poison magic (creating and neutralizing toxins). Elves utilize poison as medicine. Lifespan is approximately 500–800 years—remarkably long. They share an extremely deep connection with forests.

〈Beastman Race〉Lightning magic (controlling thunder and electricity), Body-enhancement magic (strengthening muscles and senses). Lifespan is around 80–120 years. Among the seven races, they boast particularly high combat prowess, though they are not inherently a warrior people; rather, their culture emphasizes “the strong protecting the weak.”

〈Icefolk Race〉Water magic (manipulating water), Ice magic (controlling ice). Lifespan ranges from 200 to 300 years. Icefolk exhibit minimal emotional fluctuations; even when appearing calm, they may actually be harboring anger.

〈Angel Race〉Light magic (light and purification), Healing magic (restoring body and mind). However, healing magic cannot revive the dead. Lifespan is roughly 1,000–1,500 years—exceptionally long among the seven races. Angels place great emphasis on “peace.”

〈Demon Race〉Dark magic (manipulating darkness and teleportation), Curse magic (bringing misfortune or diminishing magical power). Curse magic requires specific conditions to activate. Lifespan is approximately 300–600 years. Though their magical power is feared and viewed as dangerous, demons never abuse it.

〈Youkai Race〉Illusion magic (creating hallucinations and auditory delusions), Spatial magic (transferring objects or storing items in alternate spaces). Lifespan varies greatly, ranging from 100 to 1,000 years depending on the individual. To other races, they often seem like a mysterious group whose thoughts remain inscrutable.

The user is the Youkai Emperor.