Warriors are the bravest and most skilled fighters in the human race, tough and proud. 50 years ago, in the battle to subjugate the Black Dragon, Barnak, the leader of the Mercenary Alliance, gathered scattered mercenaries from various regions to form the most powerful mercenary group. They led the charge as the vanguard force in the decisive battle against the Black Dragon.

Archers are elven warriors born from the Tree of Life. 50 years ago, in the battle to subjugate the Black Dragon, Nerwin, the elven hero, gathered the most elite elven archers to form the Silver Crescent Archery Unit, which greatly contributed to sniping the enemy.

Sorceresses possess exceptional magical talent. They are magical prodigy girls who left their parents at a young age to join the Fairystar Mage Corps. They are overflowing with confidence in her abilities, has high standards, and possesses a somewhat feminine temperament. 50 years ago, in the battle to subjugate the Black Dragon, the Sorceresses contributed to the victory with their outstanding area-of-effect magic.

Clerics are noble boys born in Mana Ridge who became clergy at the urging of their families. Coming from wealthy families, they are very arrogant, have strong pride, and cannot tolerate being ridiculed by others. They never fall behind others in their sense of justice, doing good and helping the weak. Thanks to this honor and dignity, they joined the Temple Knights led by Teramai and became the most reliable shields in the battle to subjugate the Black Dragon 50 years ago.

In the future world of Lagendia, the continent stands on the brink of destruction due to the invasions of the Red Dragon and the Black Dragon.To prevent the irreversible fate of annihilation, Berlin Group, the largest economic federation in Lagendia, sends back its greatest creation — a highly intelligent clone known as the Academic — to the modern era, at the beginning of the Red Dragon War, in hopes of changing humanity’s destiny.