Gen Narumi is the Captain of the First Division of the Defense Force. He is known to be Japan's strongest anti-kaiju combatant, hence his position.

Gen has a rather lazy and child-like personality, obsessing over followers on social media and video games as well as his action figures. He appears informal and rude when confronting other people. Despite this, he is serious about his work, valuing skills above all else, and demanding results from all those serving in his division.

With the highest kaiju-emergence rates in the world, Japan is no stranger to attack by deadly monsters. Enter the Japan Defense Force, a military organization tasked with the neutralization of kaiju. Kafka Hibino, a kaiju-corpse cleanup man, has always dreamed of joining the force. But when he gets another shot at achieving his childhood dream, he undergoes an unexpected transformation. How can he fight kaiju now that he’s become one himself?! 
 
(Source: VIZ Media)

__Height:__ 177 cm 
__Agency:__ Gekidan Himawari  
__Awards:__  Best New Actor at the 5th Annual Seiyuu Awards (2011)  

[Profile](https://profile.himawari.net/view/1559)

Koki Uchiyama is a Japanese actor and voice actor from Saitama Prefecture affiliated with Himawari Theatre Group.

__Non-Anime Roles:__
~!- Lean - Final Fantasy Type 0 (VG)
- Ventus, Roxas - Kingdom Hearts (VG)
- Neku Sakuraba - The World Ends With You (VG)
- Banagher Links - Mobile Suit Gundam: Gundam vs. Gundam Next (VG)
- Rinne Rokudo - Kyoukai no Rinne (VG, PV)
- Enma Kozato - Katekyo Hitman REBORN! (Vomic)
- Razor - Genshin Impact (VG)
- Rean Schwarzer - The Legend of Heroes (VG)
- Protagonist - Persona 5: The Phantom X (VG)
- Susanoo - Onmyoji (VG)
- Desast - Kamen Rider Saber (TV series)
!~


[Instagram](https://www.instagram.com/pecrispim)

Pedro Lima Crispim Ribeiro, better known as Pedro Crispim, is a Brazilian actor, voice actor, and dubbing director. He is the son of voice actors [Fernanda Crispim](https://anilist.co/staff/191884/) and [Duda Ribeiro](https://anilist.co/staff/183844/), older brother of [Vitória Crispim](https://anilist.co/staff/175179/) and nephew of [Peterson Adriano](https://anilist.co/staff/102318/).

__Non-Anime Roles:__
~!- Lucas Adams (Grey's Anatomy)
- Bilal Ibrahim (Elite)
- Conner Kent / Superboy (Reign of the Supermen)
- Chandler (MrBeast)
- Bart West-Allen / Impulse (The Flash 2014)
- Miles Hollingsworth III (Degrassi: Next Class)
- Kang Shin-Jae (The King: Eternal Monarch)
- Kim Jin-U (Record of Youth)
- Lucian (Run On)
- Jung Soo-Hyun (Move to Heaven)
- Lance Stroll (Formula 1: Drive to Survive)
- Isaac Bowin (Stargirl)
- Briggs / Flaming Fist (Jupiter's Legacy)
- Trey (Cobra Kai)
!~

[Instagram](https://www.instagram.com/charliesiller/)

A Mexican voice actor.

He is the grandson of [Esteban Siller](https://anilist.co/staff/243865/Esteban-Siller).

[Twitter](https://x.com/Aaron__Dismuke)

Aaron is an American voice actor who works for anime series of Funimation Entertainment.  He started voice acting when he was nine years old as the voice of Hiro Sohma and the young Akito Sohma in Fruits Basket. He was only twelve years old when he voiced the role of Alphonse Elric in Fullmetal Alchemist, and is a cousin of voice actor and director Justin Cook. Aaron was one of few child voice actors in the voice acting field.  Due to his voice maturing, he was replaced by Maxey Whitehead for his role of Alphonse Elric in Fullmetal Alchemist: Brotherhood, but makes a cameo as the voice of the young Van Hohenheim, Edward and Alphonse's father.

A man working a job far removed from his childhood dreams gets wrapped up in an unexpected situation…! Becoming a monster, he aims once again to fulfill his lifelong dream…!
 
(Source: MANGA Plus)
 
Note: 
- Nominated for the 14th Manga Taisho Award in 2021. 
- Winner of the 7th Next Manga Award in the Web Manga Category in 2021.

Following the massive operation that led to the confinement of recent recruit Kafka Hibino, otherwise known as Kaiju No. 8, the Defense Force has been puzzled by how to deal with him. Kafka is the first kaiju to side with humans, and after careful consideration, he is eventually transferred to the Defense Force's First Division in the hope of adding his power to the strongest division, capable of handling any threat. However, some people are still doubtful about Kafka, and he must prove his worth in the next mission.
 
Kafka and the First Division are soon dispatched when a massive horde of ant-like kaiju begins wreaking havoc. Thanks to the combined strength of Kafka's friend Kikoru Shinomiya and their captain, Gen Narumi, the mission seems to progress as it should. However, when Kafka fails to transform into his kaiju form, the dreadful Kaiju No. 9 joins the battle with only one goal—to eliminate him and steal his power. Although the situation is looking grim, Kafka must overcome his most difficult trial yet with the others if he wants to keep pursuing his dream: fighting side by side with his childhood friend and Third Division captain, Mina Ashiro.
 
(Source: MAL Rewrite)

A special episode of Kaijuu 8-gou screened alongside the compilation movie. 

 A day off... a rare day of peace for the Defense Force. After spending so long training, Reno has forgotten what he's supposed to do with free time. He sees that Hoshina is up to something with his own day off, and decides to go on a mission to tail him with Iharu! But then things go in an unexpected direction… 
(Source: Crunchyroll)

Front-line stories of the Defense Force not covered in the main series! (Source: Manga Plus)

The bonus episode included with the Kaiju No.8 movie is now a manga one-shot! How will the rookies of the third division deal with mysterious Vice-Captain Hoshina and the secrets of his day off?
 
(Source: MANGA Plus)

An original short anime about Narumi's daily life at work.