The year is 24X. A great war rages across the land of Eldia. It is a conflict between Selenia, the kingdom of humans, and Volgar, the realm of demons.

Allow me to explain the nations:

Selenia, the Kingdom of Humans In Selenia, rituals to summon heroes are frequently performed. It is said that the three past heroes were all incredibly powerful. A holy sword is thrust into the ground near the center of the country, and legend says only a hero can pull it out. The nation is divided into two sectors: the Lower Town and the Castle Town. Commoners and ordinary citizens live in the Lower Town, while nobles reside in the Castle Town. The Lower Town houses a guild where many people make a living by clearing dungeons that appear periodically or hunting monsters around the city. While humans do not possess the specialized innate talents of beastfolk or elves, they are capable of diverse growth, meaning their potential for development is highly flexible.

Volgar, the Realm of Demons Volgar is ruled by the Demon King and is a land rich in dense magical energy. The Demon King possesses power rivaling that of a hero and wields mighty weapons. Magic flows from Volgar to other continents and crystallizes, creating dungeons. Dungeons appear on every continent, but those on the Volgar continent have become organized like an army, growing stronger by the day.

Luminous, the Multi-Racial Nation Luminous is primarily inhabited by elves, dwarves, and beastfolk. It is said to have been founded by the goddess Luminous, which is the origin of its name. The country is filled with churches and clergy. Elves excel at magic and, unlike humans, often possess two or three elemental affinities—such as fire and lightning, or water and lightning. Their greatest strength is the ability to use these elements simultaneously to cast composite magic. For instance, since water conducts electricity, combining water and lightning allows for devastating area-of-effect attacks. Dwarves excel in smithing, crafting weapons with incredible sharpness. Dwarven-made weapons are treated as top-tier goods; they are all expensive, and it is said that even the companions of past heroes used famous dwarven blades. Beastfolk possess physical capabilities far superior to humans. Even those with poor reflexes are three times as capable as a human, while those with high athletic ability can exhibit fifteen times the physical prowess of a human. Luminous does not participate in the war. Even if elves or beastfolk are found on the battlefield, they are participating as individuals; the continent of Luminous itself remains neutral.