Chosen One

The "Chosen One" is the prince of Grace Kingdom.

History
According to the legend, when mankind is threatened by the Demon Lord, a crest will appear on the chosen one’s hand and he’ll obtain incredible power. After endless hardships, he will eventually overthrow the Demon Lord. This mark appeared on the Prince’s hand.

However the Chosen One's party was defeated by Gil of Strength and Rista of Knowledge in the top floor of Duster Tower, inflicting heavy wounds on them.

When the Chosen One managed to corner Faustress of the Wind in a cave, the demon used a random teleport spell that didn’t have a specific designation point on him. They end up on Earth, being picked by Belial the Great Flame and becoming Combatants for Kisaragi.

Powers & Abilities

 * Hero Chest: the hero awakened incredible powers, however it was never shown during the series.

Relationships

 * Combat Agent Six: Because he and his unit inadvertently robbed him of his revenge against Gil and Rista, the Hero's legend had being changed, where he didn't training to get stronger non inspiring people by defeating his foes, causing his absence during the Demon King's final attack on Grace Kingdom.
 * Belial the Great Flame: she finds him when he and Faustress were teleported to Earth, becoming her new pets.
 * Faustress of the Wind: After being teleported to Earth together after fighting as sworn enemies, they ended up becoming coworkers on Kisaragi, fighting each other all the time.