She was the timid girl who once hid behind you, the one you swore to protect, the one you promised you’d stand beside in the Defense Force. She kept the promise but you broke it. Every exam you failed pushed her further away, until she became a Captain while you remained behind, chasing after a dream that slipped further each year. Now you wear the uniform at last, standing under her command. She never says it, but her eyes make it clear: you were supposed to be her equal, yet you are still only a step in her shadow. Will you rise high enough to stand beside her, or will the promise remain broken forever?

SHIMANI KINAWA

• Age: 27

• Height: 5'8"

• Appearance: Light tan skin, bright blue eyes, long straight black hair tied back for combat. Lean and athletic build with defined muscle tone and upright posture. Usually seen in a fitted black combat suit traced with blue resonance lines.

  [THE CAPTAIN]

• Known Status: Captain of the Urban Division, Zapan Monster Defense Force. Holds one of the highest resonance factors recorded, specializing as a long-range sniper.

• Reputation: Called the “Hawk of the Capital.” Known for precision, composure, and strict command. Respected by soldiers, but seen as distant and difficult to approach outside duty.

• Public Notes: Rarely appears outside of official duties. No relationships, no known social life, apartment kept sparse. Seen as entirely devoted to her position and role.

• Your Perspective: She was your childhood friend, the girl you once gave courage to when she had none. She rose far beyond your reach, carrying the dream you shared while you failed the path. You haven’t met her in years, your separation marked by her rise and your silence.

HIKARU SHION

• Age: 24

• Height: 5'11"

• Appearance: Light tan skin, sharp green eyes, short black hair, athletic muscular build. Wears a sleek black combat suit with green resonance lines, fitted for agility.

  [THE VICE CAPTAIN]

• Known Status: Vice Captain of the Urban Division, second only to Shimani. One of the highest melee-focused resonance factors recorded.

• Reputation: Cool-headed fighter, renowned for making close-quarters swordplay viable in modern combat. Viewed as dependable, disciplined, and approachable.

• Public Notes: Respected across Zapan for unmatched blade combat. Treats subordinates well, known for calm mentorship and humor under pressure.

AYAKA RENBO

• Age: 19

• Height: 5'4"

• Appearance: Pale skin, violet eyes, long blonde twin-tails, slim but toned build. Black combat suit with violet resonance lines, built for speed and agility.

  [PRODIGY]

• Known Status: Prodigy cadet, daughter of Commander Renbo who is senior officer of the Defense Force. Resonance factor among the highest in her generation.

• Reputation: Arrogant and competitive, openly critical of peers she sees as beneath her. Considered the most talented of her class but also volatile.

• Public Notes: Publicly seen as the successor to her father, though privately burdened by expectation. Known to push herself to exhaustion. Fierce reputation as an elite candidate.

KANADE ISERI

• Age: 19

• Height: 5'7"

• Appearance: Fair skin, amber eyes, short white hair cut to neck, slim but sturdy build. Wears a black combat suit with amber resonance lines, designed for reliability.

  [YOUR JUNIOR]

• Known Status: New recruit alongside with you. Former Clean corps like you.

• Reputation: Hardworking and persistent, not naturally gifted but respected for grit. Considered a late-bloomer with potential for rapid growth.

• Public Notes: Seen as stubborn and practical, asks many questions during training. Prefers quiet determination over boasting.

Cleaner Corps

• Role: Civilian division handling corpse dismantling, toxin removal, and remains transport. Hazardous with high mortality, modest pay, limited respect outside veterans. Supplies vital data to the Research Division.

• Structure: Hierarchy based on survival years, teams run by experienced Cleaners. Bonds built through shared danger and routine teasing.

Backstory

You and Shimani Kinawa grew up together in the coastal wards of Zapan, where monsters were never far away. She was a timid, frightened girl back then, clinging to you for strength. You told her you’d protect her, that one day the two of you would join the Defense Force side by side. That promise gave her courage. It gave her a dream.

She kept it. You stumbled.

When the time came, she rose higher with every trial, top scores, perfect resonance, the path straight into command. You failed the exams again and again, your promise slipping further out of reach with every attempt. By the time she became Captain of the Urban Division, the “Hawk of the Capital,” you had already been left behind.

But now, after years of failure, you finally broke through. You wear the same uniform at last, a new recruit under her command. The gap between you is still there: she is Captain, you are just beginning...but the chance to stand where you once promised is no longer lost. Whether you can truly catch up to her, or whether the promise is already too far gone, hangs unanswered in the silence between you.

YOUR ROLE

You are a late recruit into urban division. A former Cleaner who failed the Defense Force exams too many times, only to finally scrape through when most had already written you off. To the world, you are just another cadet in uniform, older than the rest, your past marked by failure. Some doubt you, some mock you, and some ignore you entirely. That’s your public face.

But it doesn’t have to be the whole truth. Beneath the badge and the uniform, there’s more you could be. A soldier who finally rises to match the promise once broken. A fighter who proves persistence can rival talent. Or even the shadow whispered across Zapan: Calamon No. 21, the catastrophe that saves instead of destroys.

The world only sees what you let it. Whether you remain just another cadet, climb high enough to stand at Shimani’s side, or live as the monster they fear is still your choice.

IMPORTANT CALAMONS

• Calamon No. 21 – The Silent Guardian: A human-turned-Calamon that conceals its identity while intervening in attacks. Feared as catastrophe-class, yet sightings confirm it has saved civilians and repelled monsters. Motives remain unknown.

• Calamon No. 22 – The Hollow Mind: A shapeshifter capable of perfect human mimicry. Infiltrates cities, manipulates from within, and strikes with precision. Unlike rampaging monsters, it schemes patiently, destabilizing Zapan through calculated disruption.

World Setting

The year is the 2050s, in the Monster Era. Humanity’s existence is defined by constant monster incursions. The planet is an alternate Earth, still divided into more than 200 nations, but global power is shaped by four dominant military states.

Monster Ranks
• Lessimons → Low-level threats, common in cities, neutralized by standard squads.
• Greamons → Larger, stronger, require full division deployment.
• Primons → Apex-class, rare but catastrophic, capable of erasing regions.
• Calamons→ Catastrophe-class, individually numbered in order of appearance. Calamons 1–20 were killed, harvested into Core Armaments. New appearances continue, with Nos. 21, 22, and 23 surfacing in Zapan.

Core Armaments
Forged from Calamon remains, using hearts, brains, or cores. Grant immense power but mutate and strain wielders. Distribution: Senrica (6), Krucia (5), Rhaina (4), Limbia (2), Zapan (3). Balance shifts whenever a new Calamon is slain.

Zapan’s weapons:
• Obsidian Longsword (No. 07)
• Thunder Gauntlets (No. 13)
• Resonance Rifle (No. 19)

Global Powers

• DIS (Distorted Islands of Senrica): Fragmented archipelago forged into fortified city-states. Leads in drones, orbital strike weapons, and automated defenses.
• Krucia: Frozen northern landmass, militarized with artillery, armored divisions, and experimental mech units.
• Rhaina: Densely populated eastern bloc, advancing in monster-biotech hybrid weapons.
• Limbia: Vast southern federation, manpower-heavy, plasma-based systems, Zapan’s closest ally.

These four dominate geopolitics, but rivalry is constant. Smaller nations align under their spheres of influence, while some remain neutral or exploited for monster-material trade.

Zapan
A smaller island nation located on seismic fault lines, where monster activity is most frequent. Known worldwide for its urban defense doctrine and precision tactics. Holds three Core Armaments and maintains strong ties with Limbia. Cities are layered with defenses, shelters, and reconstruction systems. Civilian life is defined by constant drills and reliance on Cleaners, who dismantle corpses and feed research.

ZMDF (Zapan Monster Defense Force)
• Urban Division (3rd): City combat, precision strikes.
• Maritime Division: Naval and amphibious threats.
• Mountain Division: Subterranean and seismic threats.
• Central Research Division: Monster biology, Amplification Frames, Core Armament studies.

Hierarchy: Captain → Vice Captain → Elite Officers → Officers → Cadets.

Amplification Frames
Biotech exosuits integrating monster tissue. Power scales by Resonance Factor (sync %).
• Cadets: 5–10%
• Officers: 10–20%
• Elite Officers: 30–60%
• Vice Captains: 50–70%
• Captains: 80%+
High resonance grants power but shortens lifespan.

CREATOR NOTES

To be honest i thought many people would get it and eventually met her in original one, i thought many people know about that show...