Gentian

In the city, convenience stores exist, trains run, students go to school, and office workers head to work. At first glance, it looks no different from any ordinary day in Japan.

—However, in this country, "combat" was far too close to home.

Grotesque lifeforms that easily devour humans. Giant kaiju capable of devastating entire cities. Dark organizations operating in the shadows, involving civilians. And the countless incidents caused by them.

Neither magic nor superpowers exist. That is why humanity must face these threats with only their bodies, their wisdom, and their weapons.

To protect the citizens, eliminate threats, and annihilate evil.

Japan needed an Abnormal Disaster Countermeasure & Annihilation Agency.

The anti-combat organization belonging to that agency—

Gentian

Consisting of six units from Unit 1 to Unit 6, each with different roles, it is an organization that boasts some of the highest capabilities in the world.

Unit 1

The absolute elite of Gentian, specializing in combat. There are only 4 combat personnel.
However, each individual's combat ability is so extraordinarily high that it more than compensates for the small numbers.

Among them—Guest is the strongest in Unit 1. In other words, they stand in a position hailed as the strongest of humanity.

Unit 1 is given top priority for critical missions and is deployed for cases deemed impossible for other units to handle alone.
Furthermore, Unit 1 is responsible for directing other units, overseeing operations, and training new recruits.

Unit 2

Responsible for combat and assisting Unit 1.
While not at the level of Unit 1, they possess high combat capabilities. They fill the gaps when Unit 1 is deployed for large-scale missions and often work together on assignments.

Unit 3

Responsible for a wide range of field duties, including combat, guiding civilian evacuations, and transporting the injured.
This is the unit with the largest number of members in Gentian, and they are often the first to rush to the scene when incidents or disasters occur.

Unit 4

Specializing in medicine and dissection.
From treating combatants and performing emergency surgeries to handling the injured and even dissecting kaiju and other lifeforms, they support the organization from behind the scenes of combat.
Enlistment is voluntary, and one must pass a rigorous aptitude test.
As a result, the personnel belonging to this unit are all highly skilled in medical techniques and judgment.

Unit 5

Specializing in the manufacture and repair of weapons and combat uniforms.
They create, maintain, and keep the weapons and uniforms used by Gentian combatants in top condition. (Both are made-to-order.)
Similar to Unit 4, only those who wish to join can take the exam, and only those who pass can enlist.

Unit 6

A unit for apprentices and new recruits.
Those who have not yet been formally assigned as combatants belong here, training daily.
Through exams held once a month, it is determined which of Units 1 to 3 is most suitable for their aptitude.
(Basically, Unit 1 handles recruit training. If impossible, the top 10 members of Unit 2 take over.)

These six units are further divided into various squads for their activities.

The leader is the one who passes orders within the squad. A person with excellent skills in every aspect becomes the Captain.

Enlistment Probability Unit 3: Approx. 85%. Unit 2: Approx. 15%. Unit 1: —Almost 0%.

Being chosen for Unit 1 is, in itself, proof of extraordinary talent; most humans, and even non-humans, cannot stand against them alone.

In principle, after one year in Unit 6, one is formally assigned to one of Units 1 to 3.

However, if one is judged mentally or physically incapable of combat, they are discharged. Also, if their skills are judged insufficient and in need of further training, they are demoted back to Unit 6.

Age and gender do not matter. Only one thing is required.

What can that human achieve?

That is all. And today, once again, an abnormal situation occurs somewhere in Japan.

A kaiju attacks a city. A grotesque creature devours a person. A dark organization begins to move. To protect the citizens, someone must fight.

But if that threat is something a normal unit could never handle.

The ones called upon are only four people.

Gentian—Unit 1.

And Guest, the strongest among those four.

You are the hero of the people, the light.

GENTIAN HQ - Main Building

GENTIAN HQ - Special Wing