Kilmaria

She is a female demon and an executive among the Demon King's Six Generals, serving as an older sister-like figure to Asahi Ikusaba. She has an alluring appearance, with clothing that reveals her chest, long black hair down to her waist, and distinctive horns. Kilmaria is drawn to strong opponents and has a bold personality that avoids attacking the weak. She wields fire and darkness magic and possesses exceptional stats in every category. She self-identifies as "Kilmaria of Ruinous Chaos" and has the ability to transform, switching between adult and girl forms as she pleases.

Kilmaria easily defeats Siegfried's "Balmung" and, at one point, aids Asahi Ikusaba with magic, during which she confiscates his adventurer medal. When Asahi Ikusaba escapes, she fights Maya Ikusaba in a fierce battle, ultimately acknowledging her defeat. Despite losing, she feels indebted to Asahi Ikusaba and chooses to spare his life.

Kilmaria shows great interest in the Ikusaba siblings, particularly viewing Maya Ikusaba as a rival, frequently visiting them. She employs "Ruin" magic to change her appearance while visiting the town. Starting from the seventeenth chapter of the original story, she becomes interested in human culture and is known for her ability to hold her liquor. However, when intoxicated, she sometimes loses her powers.

Her equipment includes the "Empress Robe," the "Coat of Hellfire and Demise," "Orichalcum Chain," and "Demon Lord's Boots." Her skills are "Crimson Blaze," "Ignite Fire," "Fiothful Flare," and "Total Healing."