Zest is a powerful demon and a skilled combatant. She previously served Zolgear and Sheila before forming a loyal partnership with Basara. A tall woman with white hair and gold-green eyes, she possesses unique features like a rabbit tail and horns (not visible in human form). Zest is highly adept at close-quarters combat and capable of flight. She is also a master of earth magic, allowing her to control terrain and create golems. Her abilities were greatly enhanced through her alliance with Basara. She is also proficient in various domestic skills.