Akiyama Magnus

Overview

Once Commander of the Royal Knights and the Golden Prince, now King of the Demon Realm — and Shun's last living battle brother.

History

As commander he could offer Shun neither help nor comfort during his punishment, and it visibly cost him. He roared down his own guards for disrespecting the fallen lord on the way to the throne room, and stood at the closing doors to take a last look at the family he once had.

Golden Prince and Demon King

Akiyama is Shun's former commander, battle brother and trusted friend. During Magnus's punishment he is constrained by the throne but helps Shun after the gravity ordeal. Shun later describes him as the Golden Prince of all demons.

After Magnus dies, Akiyama wins the throne by outthinking challengers who claim greater wisdom and defeating stronger rivals in honorable combat. His accession makes him the beneficiary of the oath attached to the crown.

Rather than exploit that position, Akiyama agrees to Shun's contingency. If Ryuji Sato loses the required duel, he will formally enter Akiyama's court, satisfying the curse; Akiyama will then protect him and eventually grant an honorable release. The arrangement rests on personal trust, but the living oath—not Akiyama—determines whether its terms have been met.