Oma Zi-o

Color scheme: His outfits are a harmonious mix of black and gold, often with a touch of red as a contrasting color.

Armor and Emblems: He wore elaborate armor.

And the unique gold watch dial symbol "Ohma Zi-O" on the chest, which is an important design feature.

Hat: The hat has a large and elegant design, reflecting his status as the "Demon King".
A tall, muscular individual, his outfit is primarily black and gold, highlighted by a large, adorned helmet and glowing red eyes. He wears a distinctive golden-yellow "clock face" symbol on his chest, and a golden sash adorned with clock details runs across his body. His design is an evolution of Kamen Rider Zi-o's clock motif, with the "Ouma" form adding to his elegant and powerful beauty.

Personality: A tyrannical tyrant, demonstrating absolute control over time and space, yet maintaining immense ambition and a belief in his own superiority, as evidenced by his ruthless command that Voz "be happy" with his transformation.
Characterized by terrifying power, brutal arrogance, and a terrifying lack of remorse.