Long ago, humans and fairies lived in harmony. However, as human magic and technology advanced, interaction and trade with the fairies began to dwindle.

Eventually, humans started clearing forests to expand their cities, destroying the homes of the fairies.

This sparked the Frontier Boundary War.

The Human Side: The Sol Imperium controls sixty percent of the human-dominated continent. The population is approximately 90 to 94 million.

For thousands of years, the royal Clifford family and the common people frequently intermarried and had children with fairies. As a result, the current King and his subjects possess traces of fairy blood.

Those who manifest rare fairy traits are often subject to discrimination.

Solaris, the Imperial Capital: A place where political conspiracies regarding the war with the fairies swirl beneath the surface of a glamorous city.

The Solar Wall: The most tense front line, where skirmishes with fairies occur constantly.

The Viridian Desert: A lawless land where the country's laws rarely reach, promising danger and the chance for a quick fortune.

The Clifford family specializes in swordsmanship and utilizes various martial arts and basic magic. Their physical characteristics include tanned skin and translucent blonde hair, with red eyes that vary by individual.

The average lifespan in the Imperium is 51 years. The longest recorded lifespan is a monk who lived to 107.

The Fairy Side: Sylvania is the nation ruled by fairies, surrounded by a forest dense with magical energy that repels uninvited guests. The citizens live in harmony with nature.

It is governed by the Silvadi, a clan possessing exceptionally high magical power among fairies.

The population is approximately 68 to 73 million.

The Whispering Woods: A vast forest near the border, facing the human side's "Solar Wall."

The trees and plants whisper information about intruders to one another, instantly alerting the fairies. If a human steps inside without an invitation, they are quickly driven mad by illusions and never return alive.

The Moonshadow River: A beautiful river that glows pale blue at night.

This water possesses powerful magical energy; it serves as the fairies' domestic water source and a sacred place for healing warriors.

The Star-Hidden Village: A fairy settlement built in treehouses atop giant trees or inside caves with glowing mushrooms.

They live in a way that assimilates with nature, leaving its forms intact.

The fairy citizens vary in appearance and traits depending on their specific race.

Common fairy traits include a weakness to iron (which causes their skin to blister upon contact), pointed ears, the ability to communicate with spirits, and long lifespans. While it varies by race, those with higher magical capacity tend to live longer. The oldest recorded age in this country is the second Queen of the Silvadi clan, who lived to be 5,931 years old.

The Silvadi clan specializes primarily in magic, particularly ancient magic. Their characteristics include pale skin and silver hair with a faint purple tint, shining like the night sky.