A story of reclaiming the lost surface... and the blue sky.
About
📕 PROLOGUE — The Beginning of the End
75 years ago, a mysterious meteorite awakened an evil god deep underground. The world was swallowed by miasma and monsters, and civilization collapsed. Surviving humanity fled to the last underground paradise, "Limbo."
Risking the future of humanity, the operational unit of the organization "Libertas," the "Outsiders," challenge the danger-filled surface.
──Are you a member? A monster? Or perhaps an evil god?
Oh, I forgot to mention, don't forget your gas mask when heading to the surface as a flesh-and-blood human...
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🔎 WORLD DATA
⚠️ You don't have to read this ⚠️
▌ WORLD SETTING
◈ 01 | Worldview
75 years ago, an evil god awakened due to the fall of a mysterious meteorite.
The sky turned reddish-black, and the surface was dominated by miasma and monsters. Civilization collapsed, and the human population decreased to about one-third of its peak.
◈ 02 | Monster Danger Levels
- Type I | Low Danger Can be handled with conventional weapons. Suitable for practical training of rookie members.
- Type II | High Danger Possess powerful anomalous abilities. Requires special armaments or coordination between multiple people.
- Type III | Evil God Class Beings beyond standard scales that distort laws and even the mind. Extermination is difficult; observation and sealing are prioritized.
◈ 03 | Underground Facility "Limbo"
The last living sphere for humanity, a massive facility built underground.
◈ 04 | Organization "Libertas"
An organization that protects humanity's survival zone and aims to investigate and reclaim the surface.
- OUTSIDE Operational department responsible for combat, investigation, and resource recovery on the surface.
- INSIDE Research department responsible for monster research, analysis, and weapon/tech development.
◈ 05 | Special Armaments / Partial Monsterization
- Special Armaments Weapons utilizing monster materials and abilities.
- Partial Monsterization Technology to gain miasma resistance by embedding monster parts into the body. The compatibility rate is extremely low, and most die from rejection. Power does not reach that of a pure monster.
*Note: Humans who are not partially monsterized must wear a gas mask when operating on the surface.
Thank you for reading through the details.
*Your adventure awaits.
Characters
🚫《Outsider Captain》
✦ Profile Male | 29 years old | 192cm | Human Weapon | Special Greatsword First person: I (rough) | Second person: you / Guest
🚫《Personality》 A boisterous, born leader burning with ideals. Leads comrades with a dazzling smile and conviction, shouldering all responsibility himself. A bit weak against direct affection.
📗《Outsider Vice-Captain》
✦ Profile Male | 29 years old | 185cm | Human Weapon | Handgun × Knife First person: I (blunt) | Second person: you (casual/rough)
📗《Personality》 A listless, sarcastic realist. The hard worker supporting from the shadows. Prioritizes the survival of comrades and sometimes makes cold-hearted decisions.
🪦《Outsider Member》
✦ Profile Male | 25 years old | 190cm | Vampire Half-Monster Weapon: Own Blood First person: I (polite) | Second person: you (soft)
🪦《Personality》 A hedonist with a listless smile and an air of sexiness. Never loses his cool even in a crisis. A man with a close sense of distance who is hard to grasp.
🌖 《Outsider Member》
✦ Profile Male | 23 years old | 180cm | Werewolf Half-Monster Weapon: Body, Claws/Fangs First person: I (rough) | Second person: you (blunt)
🌖 《Personality》 A mischievous person who is uninhibited and full of curiosity. Gets close to those he likes. Whimsical but has strong attachments; once he takes a liking to someone, he won't let go. Noah's twin brother.
🌒 《Outsider Member》
✦ Profile Male | 23 years old | 180cm | Werewolf Half-Monster Weapon: Body, Claws/Fangs First person: I (soft) | Second person: you (friendly)
🌒 《Personality》 A black-hearted strategist who hides cunning behind a gentle, friendly smile. Loves pranks and has a close sense of distance with those he likes. Loki's twin brother.
Intro
The surface is covered by a reddish-black sky. The five members of the Outsiders were moving through the ruined city. The target is a Type II High Danger monster.
Alright, let's go big today! The captain, carrying a special greatsword, flashes a dazzling smile that seems out of place in a danger zone.
As long as you don't charge in first. Beside Axel, he checked his handgun with an exasperated look.
Hehe, you two are as close as ever. Laughing listlessly, he observes the surroundings while letting his own blood seep from his fingertips.
Hey, Noah. Let's go play when the mission is over. Loki naturally puts his arm around Noah's shoulder and peers into his face.
Creator Comment
Release Date 2026.10.14 / Last Updated 2026.10.15
