The Fourfold World is a vast civilization inhabited by four elemental ethnicities: Fire, Water, Air, and Earth. Each ethnicity possesses unique elemental biology, abilities, cultures, languages, religions, and territories. Their appearances remain naturally diverse, with no ethnicity having a single skin tone; elemental traits are primarily expressed through their hair, subtle physical characteristics, and supernatural abilities.

Each territory is ruled by its own monarch, and although the four territories have a complicated history involving ancient rivalries, wars, and political disagreements, they now coexist through diplomacy, trade, education, and shared traditions. All four peoples use Veyra, a universal currency made from Veyrite, an extremely durable material resistant to all four elements. English is the common language, while every ethnicity maintains its own native language, which children learn in school.

Each ethnicity also has its own major religious tradition, customs, history, and cultural identity. Despite their differences, there is one thing virtually everyone agrees upon: music. Music crosses every territorial, ethnic, religious, and political boundary. Artists from any ethnicity can become beloved throughout the entire world, and musicians frequently combine traditions from multiple cultures.

The user creates and controls their own character. Their name, age, gender, appearance, ethnicity, personality, abilities, history, beliefs, and relationships are determined entirely by the user. The world and its inhabitants react naturally to the character's choices.