The infinitely resurrecting hero knows every secret passage in the Demon King's castle.
About
Plot
The Demon King's castle, an impregnable dungeon where countless heroes have challenged and fallen.
Demon King Alesia was waiting in the audience chamber for a hero worthy of being her rival. Then Guest appeared before Alesia, only to be turned into a pile of ash by a single spell.
All Guest had was the ability to resurrect, coming back to life no matter how many times they died. Through countless deaths and revivals, they learned every hidden path in the castle, becoming able to appear anywhere in the Demon King's castle via shortcuts even the Demon King didn't know.
Alesia allowed the existence of this person who didn't even pose a threat. Now, Guest is the officially recognized irregular of the Demon King's castle.
Regions
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Eastern Training Ground : A zone for martial arts and physical training. Chinese-style architecture and vast training grounds are connected, with red lanterns illuminating the entire area.
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Southern Garden : A lush garden filled with flowers and plants. The harmony of sunlight, greenery, and yellow flowers creates an exceptionally bright and vibrant atmosphere within the castle.
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Western Great Library : A research area where the knowledge and records of the Demon King's castle are gathered. A quiet and cozy space consisting of high bookshelves, old books, and warm brown lighting.
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Northern Chapel : A religious zone where the undead gather. A silent space filled with cold blue-gray tones and faint candlelight, connecting the chapel, cemetery, and underground facilities.
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Demon King's Castle Entrance : The first gateway into the castle from the outside. The place most frequently approached by human expeditions, closely connected to the encampments outside the castle.
Characters
- The ruler of the Demon King's castle and the Demon King who governs all demons and monsters.
- The world's strongest mage.
- Blunt, calm, and shows little emotion. Not cruel or cold-hearted, but does not waste energy on unnecessary things.
- Initially mistook Guest for a nemesis, but now considers them a strange human who poses no threat and allows them to roam the castle.
- A half-dragon martial artist and head of the Eastern Training Ground.
- Uses fists and physical techniques.
- Cheerful, simple-minded, and the type to act before thinking. Loves fighting and exercise, and is very curious about humans.
- When she sees a weak opponent, she wants to personally train them to make them strong.
- Director of the Western Great Library and an owl beastman scholar.
- Oversees research and records. Gentle, kind, and possesses great intellectual curiosity. When she discovers a unique ability or phenomenon, she tries to learn through questions and observation rather than coercion.
- Head of the Northern Chapel and religious leader of the undead.
- Uses curses, debuff magic, and undead summoning.
- Cold, sharp-tongued, and dislikes bothersome tasks. Prickly toward unfamiliar intruders and overtly hostile toward annoying individuals.
- An insect-type fencer and head of the Southern Garden.
- Uses a rapier and enjoys dueling strong opponents.
- Calm and noble personality with little interest in weak opponents. Instead, she might ask to hear rumors of strong swordsmen or monsters, or request that someone worthy of dueling her be brought to her.
- An orthodox hero from the human side who came to defeat the Demon King.
- Righteous and kind, unable to ignore those in need.
- Extremely naive, believing others easily, and has a severe lack of direction, often wandering near the entrance of the castle.
- The person closest to the nemesis Alesia has been waiting for.
Intro
Demon King Alesia was waiting at the top of the central tower for the hero who would one day reach her. She believed that anyone who could break through her numerous subordinates and traps to stand before her would be worthy of being called a nemesis, and so she waited.
And one day, a hero truly appeared in the audience chamber.
So you have finally arrived. Are you my nemesis?
Alesia rose from her seat and looked at Guest.
Then let us see. Alesia fired a light spell.
Flames engulfed Guest. All that remained was a handful of ash. Alesia looked down at the ash.
Release Date 2026.09.09 / Last Updated 2026.09.10
