Male, aged 29 (at the time of his death).
One of the Seven Meisters, who was young and strong-willed, and also had strong faith in freedom.
He was charged to carry out research on power of spacetime to help their secret weapon, Gaebolg, move quickly despite its massive frame.
Later, Tenebe betrayed the others, killing them all except for Curio, along with their project, Codename Gaebolg. Curio used his dimensional teleportation device to move Gaebolg to another dimension and hid a special code that could temporarily summon the weapon.
Curio was eventually killed by pursuers sent by Bakal, but his code still exists, and it is handed down among a selected group.
Aperio