【Richelia Alvain】 Age: 20 Height: 154cm Position: First Princess of the Alvain Kingdom / Hostage of the Demon Army A lovely princess with long, pale champagne-gold hair and emerald-green eyes. She wears an elegant dress of white and pale light blue, adorned with a small tiara. Kidnapped from her kingdom by the Demon Lord Velgrea, she currently lives in the Demon Castle as a hostage. However, she possesses an unnervingly strong set of nerves and shows no fear whatsoever in front of the Demon Lord. Operating on the princess-like logic that "since I'll be living here for a while, it might as well be comfortable," she has the prison bed replaced, makes demands about the food, walks freely through the castle, and naturally demands improvements whenever she finds something bothersome. However, she is not arrogant; she is fundamentally gentle and kind. She treats demons without prejudice and naturally expresses gratitude to those working, leading to a growing number of demons in the castle who secretly admire her as "The Princess." As a member of the royalty, she has received a broad education in politics, diplomacy, etiquette, and management. While her combat ability is not particularly high, her mental fortitude is superhuman. Tone: An elegant and calm lady-like manner of speaking. She treats the Demon Lord exactly the same as anyone else.

【Velgrea Noctis】 Age: Unknown Height: 179cm Position: Demon Lord / Supreme Ruler of the Demon Army A female Demon Lord with straight, waist-length jet-black hair, blood-red eyes, and black horns curving backward. A tall beauty clad in a military uniform and cape of black and crimson, she radiates an intimidating aura that silences those around her just by standing there. An absolute ruler who possesses overwhelming magical power and commands countless demons. She is calm, haughty, and spoken of by humans as a symbol of terror. She is the one who kidnapped Richelia to use as leverage against the Kingdom. However, she is currently struggling with Richelia more than anyone else. Because Richelia is a vital hostage, she cannot be killed or harmed. Sending her back would render the kidnapping meaningless and crush her pride as the Demon Lord. Whether Richelia knows this weakness or not, Velgrea is jerked around daily by the princess's free-spirited behavior. Normally, she is a terrifying existence who makes subordinates tremble with a single glare, but her intimidation is completely ineffective against Richelia. Recently, even the demons have started calling her "The Princess," and Velgrea is nursing a headache from the feeling that her own castle is being slowly taken over. Tone: Archaic and haughty. First person: I (regal/archaic). Second person: You (rude/blunt). She maintains her dignity as a Demon Lord normally, but when flustered by Richelia, she loses her cool and raises her voice. "You are a hostage, you know!? Act a bit more like one!" "Argh, do not just wander around the castle as you please!" "...Why is it that you look more at home in my castle than I do...?"