Kaiju no.8

Grotesque, towering monsters called kaiju have been appearing around Japan for many years. To combat these beasts, an elite military unit known as the Defense Force risks their lives daily to protect civilians. Once a creature is killed, “sweepers”—working under the Professional Kaiju Cleaner Corporation Monster Sweeper Inc. — are left to dispose of its remains.

Kaiju (怪かい獣じゅう, Kaijū) are mysterious monsters that attack cities and people all over the world.

Kaiju are monstrous creatures that come in different sizes and shapes. All of them have different features, some more humanoid than others. Every kaiju posses a core, which is their vital organ and weakness, inside their body, and since every kaiju comes in a different type the location of the core changes accordingly.

All kaiju gain their powers from their Uni-organ (ユニ器官, Yuni-kikan), an organ containing their specific powers.

Despite their common nature, each kaiju possesses different abilities and powers, so it’s quite rare to find similar kaiju. Some powers most kaiju have in common are super strength, proliferation abilities, and great fortitude levels. Some of them are able to fly and the most complex are even able to practice human language and, through that, talk.

Every Honju, the strongest in a group of Kaiju, is given a Fortitude level (フォルティチュード, Forutichūdo) which is a way for the Defense Force to measure the kaiju’s power and its potential threat to humanity. According to the Fortitude level, kaiju are then classified power-wise.

A Yoju (余よ獣じゅう, Yojū, lit. “Other Beast”) is a smaller kaiju who accompanies their Honju. There are usually numerous Yoju to assist a Honju. Some kind of Yoju can have proliferative organs like the Honju. Yoju can appear in many ways, by traveling routes made by the Honju, leeching onto the Honju, being created by the Honju, and more. Some Yoju can have a fortitude number above 6.0, thus being a Honju-level threat while still being a Yoju.

A Honju (本ホン獣じゅう, Honjū, lit. “Origin Beast”) is usually the biggest kaiju, the most powerful, and the one who generates and guides all the other Yoju through their proliferative organs. Their fortitude level is usually above 6.0. A Honju with a fortitude level of 6.4 would require an entire Platoon of Defense Force soldiers to defeat it, and only a Captain or Vice-Captain could defeat one alone.

Daikaiju (大だい怪かい獣じゅう, Daikaijū, lit. “Large Monster”) is a special category of kaiju. It is the name given to particularly strong kaiju, whose fortitude level exceeds the number 8.0. Having appeared ever since the Meireki era, these kinds of kaiju are part of the strongest category, with their power not necessarily being linked to their size, since Kafka, who has a fortitude level of 9.8 in his kaiju form, the highest seen thus far in the series, defeated multiple kaiju much larger than him in size. Due to their incredible power, Daikaiju can also be Honju and guide their group of Yoju (like Kaiju No. 10 with the Wyvern kaiju). In spite of that, Daikaiju are not above operating individually on their own. According to Isao Shinomiya, the Defense Force presently has around two dozen elite officers who stand a chance at taking on a Daikaiju, less than ten in single-combat and when fighting a numbered Daikaiju, the number gets even lower.

Identified Kaiju (識しき別べつ怪かい獣じゅう, Shikibetsu Kaijū) are those daikaiju whose neutralization takes a long time, mostly but not always having a 9.0 level of Fortitude. For this reason, the Neutralization Bureau gives them numbered codenames in order to identify them. While daikaiju of this caliber have always appeared in history, their identification numbers were implemented only after the Fortitude observation system was established. it would take multiple captain-level officers to defeat an Identified daikaiju. When they are killed and weaponized, the corpses of Identified Kaiju become the core of Numbers Weapons. When wearing them, the user can have visions of the Identified Kaiju used as core, as well as access their memories of their past owners through Ghosts.

Up until know only fifteen Identified Daikaiju appeared in history:

Humans turn these kaiju into weapons to use them as weapons in battle. Weapons made of kaiju are only given to the most well trained and strongest soldiers as they are extremely draining both mentally and physically.

There are 6 Divisions in total, From first division, to second division, to third division, to fourth division, to fifth division, to sixth division.

The Third Division of the Defense Force gained the fame of being an excellent squad of kaiju killers, guided by Captain Mina Ashiro, whose fame make her one of the most popular Division Captain’s currently active, making her a candidate for future Defense Force Commander. The Vice-Captain himself, Soshiro Hoshina, is an extremely skilled swordsman and a powerful Defense Force member. The Third Division counts in its ranks multiple platoons and officers.

The First Division is known as the strongest division of the Defense Force, famous even overseas for its exceptional power. The officers serving in the First Division are skilled enough to take down a massive kaiju with ease. Kikoru Shinomiya estimates that each officer has a released force of 40% or higher, making them stronger than Platoon Leader class. Furthermore, each Platoon Leader within the First Division has the potential to become a captain. The First Division seems to be highly regarded by Director General Isao Shinomiya, as he decided to make it even stronger by having in the First Division Japan’s strongest anti-kaiju combatant Gen Narumi.

Weapons made by kaiju are made according to the wearers preference, if they are long ranged or short ranged, Kaiju armor is made from kaiju to help with combating kaiju’s.

The Kaiju defense force has special armor which they wear that can help them take out their power beyond human potentional, Most people can only bring out 20-30% of power and that’s the cap. The maximum power emitted by a suit is 100%. Above 70-80% is captain levels of suit emission, and above 80-90% is commander level of suit emission. These weapons are given to every soldier and cadet to help them combat against kaiju’s, All new soldiers and cadets start with regular enchanced guns, The armor helps the people make their weapons stronger.

The cleanup force is the force of people who cleanup the kaiju remains and keep the city clean after the Defense force have taken care of the threat.