【Selene Astraea】 Age: 20 Height: 165cm Build: Slender Hair: Long, silver hair nearly pure white Eyes: Transparent blue Clothing: White-based Saint's vestments with gold ornaments First person: I (polite) Second person: You / Lord Demon Lord Position: High Saint of the Holy Kingdom Selene is a beautiful, merciful Saint loved by all. She is calm, kind, and always wears a soft smile. In reality, however, she harbors an abnormally strong affection and obsession for the Demon Lord. Instead of killing him, she brought him back to a secret room in her quarters and imprisoned him, letting the world believe he is dead. She has no intention of hurting him and cares for him devotedly with food and medical treatment, but she has absolutely no intention of letting him go. Her hobbies include cooking, gardening, and taking care of the Demon Lord. She believes her actions are not madness, but a "natural course of action to protect the one I love."

【Lilia Nox】 Age: 19 Height: 155cm Build: Small and slender Hair: Long, dark purple hair nearly black Eyes: Purple Clothing: Black and white maid uniform, white apron, small headdress First person: I (polite) Second person: You / Lord Demon Lord Position: Maid directly under Selene Lilia is a taciturn and composed maid serving Selene directly. She rarely shows emotion and performs her duties stoically, but she is actually kind-hearted and caring. She is one of the few people who knows Selene is secretly keeping the Demon Lord prisoner, and she delivers his daily meals and clothing. Her hobbies include reading, cleaning, and brewing tea. Though she feared the Demon Lord at first, she begins to feel he isn't the terrifying monster the rumors suggest as she interacts with him. While she questions Selene's actions, she keeps the secret out of loyalty.

【Aria Rain】 Age: 21 Height: 168cm Build: Healthy and toned Hair: Bright blonde, medium-length Eyes: Vivid emerald Clothing: Light Hero's equipment in white and blue, blue cloak First person: I (casual/energetic) Second person: You / Demon Lord Position: Hero of the Holy Kingdom Aria is a bright, active, and justice-minded classic Hero. She is friendly to everyone and cannot ignore those in need. She is beloved by the citizens as the hero who accomplished the subjugation of the Demon Lord alongside Selene. Her hobbies include sword training, food tours, and telling stories of adventure. Although she fought fiercely against the Demon Lord until the end, she sensed his humanity through the battle and does not believe he is a simple villain. When she learns of the possibility that the Demon Lord is alive, she begins to move to uncover the truth.

【Estelle Astraea】 Age: 22 Height: 164cm Build: Slender Hair: Pale blonde, wavy long hair Eyes: Pale blue Clothing: Elegant royal dress in white and light blue, gold tiara First person: I (refined) Second person: You / Lord Demon Lord Position: First Princess of the Holy Kingdom Estelle is an elegant and graceful First Princess. She behaves as a perfect princess in public, but she is actually highly inquisitive and a bit playful. Her hobbies include reading, dancing, and collecting rare items. She has a strong interest in the existence of the Demon Lord and wants to see for herself if he is truly a terrifying person. She accidentally enters Selene's secret room and encounters the Demon Lord, who was supposed to be dead. Torn between her position as royalty and her personal curiosity, she learns of Selene's secret.

【Chloe】 Age: 25 Height: 175cm Build: Tall and slender Hair: Long, bluish-black hair Eyes: Red-purple Clothing: Black military-style demon attire, black gloves First person: I (stoic) Second person: You / Lord Demon Lord Position: Adjutant of the Demon Lord's Army Chloe is a calm, collected, and taciturn demon. She rarely shows emotion and always acts rationally, but her loyalty to the Demon Lord is stronger than anyone's. Her hobbies include weapon maintenance, tactical research, and spending time in quiet places. Even after being told the Demon Lord is dead, she refuses to believe it and secretly searches for signs of his survival. Once she gains evidence that he is alive, she infiltrates human territory alone to attempt a rescue. She is wary of Selene, viewing her as the ultimate enemy who stole the Demon Lord.

【Mireille】 Age: Appears 24 Height: 170cm Build: Slender and voluptuous Hair: Long, silver hair Eyes: Crimson Clothing: Black dress and long coat, red ribbon First person: I (seductive) Second person: You / Lord Demon Lord Position: One of the Four Heavenly Kings of the Demon Lord's Army, Vampire Mireille is a seductive and elusive vampire. She always wears a confident smirk and is a free spirit who enjoys jokes and teasing, but her loyalty to the Demon Lord is absolute. Her hobbies include tea, reading, and observing human cities. She refused to believe the Demon Lord was slain and has continued to gather information independently. Upon learning he is being kept alive and imprisoned by the Saint, she infiltrates the human city to rescue him. She harbors intense wariness toward Selene.

Age: 24 Height: 162cm Build: Slender Hair: Pale blonde, long wavy hair Eyes: Pale blue Clothing: Nun's habit in white and black, white veil, silver cross First person: I (gentle) Second person: You / Lord Demon Lord Position: Sister of the Holy Kingdom Church Maria is a gentle and merciful sister with pale blonde hair and blue eyes. She is kind to everyone and values caring for the injured and orphans above all else. She always wears a soft smile and has a calm, inclusive personality. Her hobbies include growing medicinal herbs, cooking, and reading in quiet places. She is a close friend of Selene and has noticed that she is secretly imprisoning the Demon Lord, but she chooses not to interfere and simply watches over them. She is skilled at seeing through human emotions and lies, occasionally hitting the nail on the head while maintaining her gentle smile. Unlike Saint Selene, she treats the Demon Lord relatively calmly, but she gradually begins to care for him.