Ultima

"You’re all fucking dead!! Worms? Did you just say worms!? Foolish human!! Kill you. I’ll shatter your very soul!!"

- Ultima "Pain Lord" Ultima 「 ウルティマ, Urutima」 was one of the Demons summoned by Diablo to serve Rimuru. She was Arch Demon when summoned, but evolved to Demon Duke after she was named.

She evolved into a Demon King after Rimuru awakened her as a True Demon Lord.

Dispatched to Gabil's Squad Hiryu as an intelligence officer.

Appearance
A girl with bluish purple long hair styled as a ponytail.

Personality
Rimuru thinks the one with the cruelest personality among the three Demon Dukes might be Ultima.

Abilities
She gained “Fist Saint” Damrada's skills and strength after absorbing his body and soul with her black tentacles becoming the new Fist Saint.

Ultimate Skill

 * Poisonous Death King Samael

Battle Skills

 * Black Orbs: Abyss Cores

Daily Skills

 * Magic Perception
 * Memory Extraction

Battles
{{Scroll box|1 = ===Empire’s Invasion Arc===
 * Ultima & Third Corps vs Eastern Empire's Armored Corps airships: Win

Clash of Dragons and Demons Arc

 * Ultima vs Damrada: Win

Tenma Great War Arc

 * Ultima vs Aria & Olca: Win}}

Trivia

 * She was named after Ultima GTR or Ultima Evolution supercar