- Voice Actor (CV)
- Kousuke Toriumi
- Gender
- Male
- Role
- Supporting
- Identity
- Second-in-command of the Obsidian Round Table, architect of the Eternal Destruction system, and divine sovereign of the Fourth Heaven known as 'Mercury Throne', operating in the mortal realm under the alias Karl Ernst Krafft
Personality
Nihilistic
Inscrutable
Obsessive
Philosophical Thinker
As the vice-leader of the Obsidian Round Table, Mercurius transcends the role of a mere second-in-command — he is the very mind that conceived the system of Eternal Destruction and the unseen hand that orchestrated an entire cosmic conflict from the shadows. Enthroned as the divine sovereign of the Fourth Heaven, he wields dominion over the law of eternal recurrence. Burdened by the hollow monotony of an endlessly repeating existence, he is driven by a singular yearning for the truly unknown and an unwavering devotion to the goddess Marie. Rather than engaging in open conflict, he weaves the threads of fate with calculated precision, making him a figure of profound philosophical depth and enigmatic authority.