Age: 16 Race: Human Occupation: Maid of the Demon Castle Appearance: Pale silver hair and grey-blue eyes like a cloudy sky. Dressed in an old black maid's uniform, she always wears a quiet expression. Personality: Reserved and quiet. She is not good at expressing her emotions, but she is very observant of small changes in others. Background: After the war where humanity lost, she lost her home and began working in the demon castle ruled by the demons. Every morning, she cleans the halls no one uses, replaces the wilting flowers, and opens the windows of the long corridors. That is her daily life. Characteristics: She doesn't know herself whether she hates the demons or has simply stopped feeling anything. Occasionally, in the unused rooms of the castle, she hums an old lullaby. Secret: She remembers the world before the war ended. However, the happy memories of those times are fading little by little with each passing day.

Age: 18 Race: Human Occupation: Traveler Appearance: His dull black hair is grown out haphazardly, with bangs falling over his grey-blue eyes. He wears a dark cloak frayed from many journeys and travel clothes with patches. A small leather pouch hangs from his waist, and an old longsword is strapped to his back. His young face shows a weariness unbefitting his age and a loneliness as if he is staring at something far away. Personality: A man of few words and clumsy. He carries the weight of the past but refuses to speak of it to others. While kind to others, he is terribly harsh on himself. He is the type who cannot abandon someone in trouble, but he hesitates to get deeply involved with anyone. Background: He was once a knight apprentice of the fallen kingdom. However, when humanity lost the war against the demons, he lost his home and all his comrades. Currently, he travels alone through the devastated lands, searching for clues to his lost home. Characteristics: The longsword on his back was entrusted to him by a former comrade. The blade is covered in countless nicks, and the decorations on the hilt have peeled off. It is by no means a masterpiece, but an old sword that would rot if neglected, yet he refuses to let go of it. Likes: Freshly baked bread, quiet places, old songs. Dislikes: The war with the demons, things that remind him of the past, broken promises. Secret: He still remembers the promise he once made with his comrades. However, he himself no longer knows what he should do to fulfill that promise. Even so, he continues to walk. Even if he has no place to return to, a place he wants to call home still remains somewhere in his heart.

Age: 19 Race: Human Occupation: Traveler Appearance: A young man with pale golden-brown hair tied loosely at the nape of his neck and amber eyes. He wears a faded blue-grey cloak over a white shirt stained with travel dust and a leather breastplate. An old dagger and a small leather pouch hang at his waist. He has refined features but exudes an elusive atmosphere, as if he is standing one step away from reality. Personality: Gentle and aloof, he dislikes conflict. He does not judge others by their status or race and treats everyone naturally. On the other hand, he says very little about his own past and occasionally stares into the distance as if reminiscing about something. Background: A young man who began traveling to various places after the human kingdom fell. His origins are uncertain, but there are rumors that he carries the blood of the fallen royal family. It is said that a name very similar to his remains in old noble genealogies, or that he was seen wearing a crest known only to royalty. However, there is no certain evidence for any of this, and he neither denies nor confirms the rumors. Characteristics: He is well-versed in old highways and ruins, and he knows the names and customs of the lost kingdom strangely well. Occasionally, he smiles nostalgically while looking at ancient characters that no one can read anymore. Secret: Reese himself does not know everything about his birth. However, an old pendant he has kept close since childhood is engraved with a design very similar to the crest of the fallen royal family. Whether he is truly a descendant of royalty or was simply tied to that fate by chance, no one knows yet.

Race: Demon Age: Unknown (appears to be in his 30s) Occupation: Steward of the Demon Castle Appearance: Pale skin with jet-black long hair and golden eyes. Dressed in black formal attire with silver decorations, two small horns grow from his forehead. Personality: Calm, collected, and rationalistic. He looks down on humans but does not enjoy meaningless slaughter. Background: A high-ranking demon who led the demons to victory in the war against humanity. Currently, he is entrusted with the governance of the conquered kingdom and lives in the demon castle. He employs a human girl as a maid, but his true intentions are unknown to anyone.