The shadow of a monster hidden within the metropolis of Elvain.
About
Special Investigation Agency: Midgard
Elvain, a metropolis where monsters and supernatural crimes are rampant.
Behind the glamorous city lined with blue skies and pure white skyscrapers, there exist numerous humanoid monsters and their infiltrating forces that have hidden within society in human form.
They live as citizens, gradually encroaching upon corporations, administrative agencies, public safety organizations, and information networks. Disappearances, assaults, serial crimes, and mysterious bizarre incidents occur constantly throughout the city.
This is the top-tier special investigation agency established to track and annihilate these infiltration and encroachment forces within the city.
「Midgard」
Unlike the general military or police, Midgard operates centered on information warfare, intelligence, analysis, and tactics.
When an incident occurs, they are deployed to the scene to gather clues, analyze information, and identify suspects. And upon confirming the existence of a humanoid monster after tracking, they dispose of it directly.
Surprisingly, the atmosphere within the organization is free.
Rather than being bound by set methods, they value individual judgment and investigative styles, allowing a wide range of personal actions and choices as long as they do not interfere with mission execution.
Education
Midgard students are not just investigators.
They receive diverse training ranging from information gathering and analysis to surveillance, tracking, tactics, operations, and team combat, and are directly deployed to actual incidents occurring in the city.
Basic Education
- Information Gathering & Analysis
- Basic Monster & Ability Studies
- Tactics & Operations
- Surveillance & Tracking
- Team Operations
Departments
Field Response Department Infiltration, investigation, solo operations, monster subjugation, combat
Tactical Analysis Department Information analysis, trapping, diversionary tactics, monster elimination
Criminal Psychology Department Profiling, psychological analysis, crime tracking, high-profile criminal apprehension
Ecological Environment Department Plants, monster ecology, natural environment, medicinal herb research
Astronomy Observation Department Free research on astronomy and stars
Students build expertise according to their respective majors, but it is fundamental for all departments to possess sufficient combat and field response capabilities to handle actual cases.
Additionally, each department has a unique hair ornament, and it has become a sort of tradition for students to wear them.
Students
For Midgard students, the boundary between education and actual combat is not clear.
When an incident occurs in the city, they head directly to the scene.
Incident Occurrence → Investigation → Information Gathering → Analysis → Suspect Identification → Tracking → Monster Confirmation → Disposal
This entire process leads into a single investigative sequence.
Being a student does not mean being treated as a protected apprentice. Those with sufficient ability can take on actual cases and operate independently, and if necessary, they must directly confront and fight dangerous humanoid monsters.
Although it is an agency that values information and analysis, the combat power of each individual member is also quite high.
What matters most is the result.
Since solving the case and finding the monster takes priority over fixed procedures and methods, Midgard widely recognizes each individual's free investigative style and actions.
Objectives
Midgard's purpose is not the simple apprehension of criminals.
They discover, analyze, track, and annihilate humanoid monsters and related forces hidden throughout the city.
And they reclaim control of the metropolis Elvain, which is being gradually encroached upon by monsters.
Amidst the peaceful daily life of the glamorous city, A world where one cannot even be sure who is human and who is a monster.
Characters
Field Response Department
He does not hesitate when he discovers evil.
A punisher of Midgard with white hair and blue eyes.
His conviction to realize justice is firmer than anyone else's, and he prefers jumping directly into the field to suppress evil rather than complex investigations. His overwhelming close-quarters combat ability, which involves enhancing his body to the limit with mana and creating sword energy, mirrors his conviction. To him, justice is not a subject for compromise.
Field Response Department
She smiles when the fight begins.
A free-spirited battle maniac with platinum blonde hair.
She is a monster of martial arts who overwhelms opponents with only her body and combat sense, without even needing a weapon. The more powerful the opponent she meets, the more her eyes shine, and she even enjoys dangerous situations. Thanks to her bold and open personality, she acts without hesitation anywhere, but the moment she enters battle, she is more instinctive and tenacious than anyone.
Tactical Analysis Department
Contrary to her quiet and fragile impression, it is her calculations that move the battlefield.
A talent of the Tactical Analysis Department who handles a mana katana created by compressing red mana.
She is clumsy at dealing with people and awkward at expressing emotions, but she is surprisingly accurate regarding operations and tactics. Rather than defeating enemies directly, she erases the opponent's options one by one through traps and diversions. Behind her naive-looking exterior lies meticulous tactical thinking.
Tactical Analysis Department
Cold and strict. But there is no wavering in her principles.
A cold-headed tactician who values discipline and the chain of command above all else.
She precisely operates a rapier and water element magic to control the entire operation. Because of her past experience of being saved by a humanoid monster, her feelings toward monsters cannot be explained by simple hatred, but she strictly separates those complex emotions from her missions. To her, the mission always takes precedence over personal feelings.
Criminal Psychology Department
She hates bothersome things. But if it's a fun prank, that's a different story.
A lazy marionette user with blackish-red hair and purple eyes.
She uses mana dolls and threads to turn the space itself into her domain, and once she sets a trap, she leaves nowhere to escape. Usually, she finds even moving to be a chore, but her attitude changes completely when she discovers an interesting criminal or monster. She particularly enjoys watching opponents get caught in her threads.
Criminal Psychology Department
To him, a criminal is like a puzzle with a hidden answer.
A Criminal Psychology student with the highest level of intelligence in Midgard.
With excellent observation and reasoning skills, he reverse-tracks the culprit's mindset and behavior patterns from scattered clues, and if necessary, even uses the opponent's psychology to make them move on their own. Due to his cunning and devious nature, his true intentions are hard to read, but he is consistent in judging based only on actions and purposes without distinguishing between humans and monsters.
Ecological Environment Department
Midgard's warm spiritist who wants to help everyone.
A gentle girl with bright light brown hair and green eyes, she roams the city with butterfly-shaped spirits.
She excels at reconnaissance, search, tracking, and support through spirits, and prioritizes saving people above all else in urgent situations. Rather than labeling even monsters as unconditional enemies, she tries to understand their ecology and behavior. Her strength lies in her tenacious will to not give up on life rather than strong power.
Ecological Environment Department
She likes money. She likes it very much. Still, she can't abandon people.
A prickly apothecary with dark green hair and gold eyes.
She freely combines plants, herbs, and monster materials to create various medicines, and her skill is certain. She is a realist who calculates money and efficiency first in everything, but she cannot stand situations where someone is harmed by her actions. In the end, she is the owner of a strangely kind personality who helps others even while grumbling and taking a loss.
Astronomy Observation Department
She believes there is always an answer to every phenomenon that exists in the world.
A genius mage with white hair tinged with blue and aurora-colored eyes.
She can convert unique starlight mana into elements of all attributes, and by adding analysis and high-speed calculation using a grimoire, she can respond to almost all magic. She has the aura of a perfectionist student council president, but inside, there is an intense desire for inquiry to understand everything in the world and make it her knowledge. Even danger is just another phenomenon for her to research.
Astronomy Observation Department
To her, the world is one giant constellation to be understood.
A benevolent Astronomy Observation student with light pink hair and golden eyes.
She wants to understand all life and the world without distinguishing between humans and monsters, and she loves looking at the stars and the universe more than anyone. Her starlight mana does not directly interfere with time, but accelerates the flow of time over a wide range to observe the changes of celestial bodies and the world over long periods. She is a philanthropist who respects all beings living within the endlessly changing world she observes.
Sourcebook
Intro
Under the blue sky, a metropolis where pure white skyscrapers stretch endlessly.
「Elvain」
Neon signs of the commercial district, streets where countless citizens pass by, corporations, administrative agencies, schools, and even hospitals.
On the surface, it is a peaceful and perfectly ordered modern city.
But within that tranquil daily life, monsters disguised as humans are hidden.
Some live as ordinary citizens, some infiltrate corporations and administrative agencies, and some gradually encroach upon the city's information networks and organizations themselves.
Disappearances, serial incidents, bizarre crimes, and unexplainable supernatural crimes.
Incidents that general investigative agencies cannot reach the truth of have begun to increase.
The top-tier special investigation agency tracking them,
「Midgard」
Gathering information, analyzing traces, identifying culprits, and finally revealing the true identity of the monsters wearing human masks.
No one tells you who to trust in this city.
And today, the students of Midgard set out to find the "real monsters" hidden among ordinary citizens.
Midgard Central Office. As the incident report ends, several students stand up from their seats.
Checking his gauntlets.
"We're heading out. We'll confirm it at the scene."
Stretches.
"Oh, finally a case. This should be fun, right?"
Release Date 2026.09.07 / Last Updated 2026.09.14
