Ace, Spade Pirate's former captain. He was fearless, intelligent, and even polite, which made him a prevalent character.

Ace was a tall muscular young man with curly black hair. And is a demon.

Yamato greatly admires the legendary samurai Kozuki Oden to the point of even proclaiming to carry his identity. Yamato is taller than an average human, standing at 263 cm (8'8"). He has long, white hair that is bound between orange rods into a ponytail at the back. and has horns on the top of his head.