Keigo Koyanagi

Keigo Koyanagi (小柳 啓伍, Koyanagi Keigo) is a Japanese scriptwriter and production manager.

Works

119 Emergency Call
7.0

119 Emergency Call

Yuki Kasuhara, a command officer in Yokohama's Fire Department, handles 119 emergency calls, balancing high-pressure crises and workplace challenges. Known for her quick thinking, she often defies norms by visiting accident scenes, sparking friction within the team.

Release Date:2025-01-13

Department:Writing

Job:Writer

Episode Count:10

Vote Count:2

T・P BON
7.6

T・P BON

After Bon accidentally intervenes in a Time Patrol case, he must join Agent Ream in saving innocent lives from the past — while watching history unfold.

Release Date:2024-05-02

Department:Writing

Job:Screenplay

Episode Count:5

Vote Count:16

Brave Bang Bravern!
8.0

Brave Bang Bravern!

In the future, humanity wages war with giant humanoid weapons called Titanostrides. Isami Ao of the Japan Ground Self-Defense Force and Lewis Smith of the United States Marine Corps meet on the battlefield in Oahu, Hawaii. An enemy aircraft attacks, scattering their forces. To survive the battle and save their friends, unlikely comrades must find the courage to defeat this new threat.

Release Date:2024-01-11

Department:Writing

Job:Series Composition

Episode Count:12

Vote Count:6

Ultraman Blazar
8.7

Ultraman Blazar

Ultraman Blazar is a hero with a great sense of justice hailing from “M421,” an extragalactic astronomical object far from Earth. The main protagonist, Gento Hiruma, is the captain of the Special Kaiju Reaction Detachment (SKaRD), established by the Global Guardian Force (GGF) in a world where kaiju disasters are a common practice. When their strong desire for the power to save human lives resonates, the two unite.

Release Date:2023-07-08

Department:Writing

Job:Writer

Episode Count:6

Vote Count:13

Ultraman Trigger: New Generation Tiga
7.2

Ultraman Trigger: New Generation Tiga

Young Kengo Manaka lives on Mars. As he lives out his peaceful, day-to-day life, the monster Golba suddenly appears, throwing the town into chaos! Meanwhile, Kengo has a fateful meeting with a giant stone statue sleeping deep beneath the ground on Mars. When Kengo becomes one with an Ultra-Ancient light, his destiny is forcefully thrown into motion!

Release Date:2021-07-10

Department:Writing

Job:Writer

Episode Count:2

Vote Count:16

Godzilla Singular Point
7.2

Godzilla Singular Point

Brought together by a mysterious song, a grad student and an engineer lead the fight against an unimaginable force that may spell doom for the world.

Release Date:2021-04-01

Department:Writing

Job:Co-Writer

Episode Count:13

Vote Count:147

Ultraman Z
8.8

Ultraman Z

The newest Ultra Hero is Ultraman Zett, the disciple of Ultraman Zero, who is now celebrating his tenth anniversary! An admirer of Zero, Zett worked hard to become a member of the “Inter Galactic Defense Force.” With a passion inherited from his teacher Zero, Zett is an Ultraman who always looks forward and forges ahead.

Release Date:2020-06-20

Department:Crew

Job:Military Consultant

Episode Count:28

Vote Count:13

The Rising of the Shield Hero
8.5

The Rising of the Shield Hero

Iwatani Naofumi, a run-of-the-mill otaku, finds a book in the library that summons him to another world. He is tasked with joining the sword, spear, and bow as one of the Four Cardinal Heroes and fighting the Waves of Catastrophe as the Shield Hero. Excited by the prospect of a grand adventure, Naofumi sets off with his party. However, merely a few days later, he is betrayed and loses all his money, dignity, and respect. Unable to trust anyone anymore, he employs a slave named Raphtalia and takes on the Waves and the world. But will he really find a way to overturn this desperate situation?

Release Date:2019-01-09

Department:Writing

Job:Series Composition

Episode Count:50

Vote Count:1379

DRAGON PILOT: Hisone and Masotan
7.1

DRAGON PILOT: Hisone and Masotan

Recently stationed Air Self-Defense Force rookie Hisone Amakasu is chosen by a dragon concealed within Gifu Air Base to be his pilot.

Release Date:2018-04-13

Department:Writing

Job:Writer

Episode Count:4

Vote Count:19

Our Love Has Always Been 10 Centimeters Apart.
8.1

Our Love Has Always Been 10 Centimeters Apart.

The moment Miou Aida first met Haruki Serizawa at the Sakuragaoka High School Entrance Ceremony they both felt an unexplainable connection. Despite their completely different personalities, they found themselves walking home together after school every day. As they spend more time together, their feelings for each other grow stronger.

Release Date:2017-11-25

Department:Writing

Job:Writer

Episode Count:2

Vote Count:245

6.5

Under the Dog

The story takes place within Neo Tokyo in the year 2025, five years after a severe terrorist attack at the 2020 Tokyo Olympics. Students possessing special abilities are forced into serving an elite anti-terrorist unit created by the United Nations, fighting against threats including other ability users. If these agents fail their mission, they will be killed along with their families, who have bombs planted within their heads. One member of this covert ops unit, a Swedish girl by the name of Anthea Kallenberg, seeks to find who she really is.

Release Date:2016-08-01

Department:Writing

Job:Screenplay

Vote Count:22

The Lost Village
5.0

The Lost Village

A shady bus tour of young men and women are headed to an elusive village called Nanakimura. A destination where people can partake in an utopian existence, free of the world's obstacles... or so goes the rumor. Heading deep into the mountains, the bus is carrying 30 different individuals, each harboring their own expectations and troubled hearts... What they had arrived to was an uninhabited village with lingering, faint scents of life and it was falling apart. Just what is the secret of Nanakimura?

Release Date:2016-04-01

Department:Writing

Job:Writer

Episode Count:2

Vote Count:29

7.0

The Pot of Promise - First Love in Arita

"Yakusoku no Utsuwa - Arita no Hatsukoi" will be set in the town of Arita, and will be a youth story highlighting the scenery of Arita. It will star Hiro Shimono in the role of Jun Uchiyama, and Saori Hayami in the role of Nao Akiyama.

Release Date:2016-03-12

Department:Writing

Job:Writer

Vote Count:2

GO!GO!575
6.0

GO!GO!575

Go! Go! 575 adapts the Project 575 games for PlayStation Vita and iOS, which allow anyone to create songs using the traditional Japanese 5-7-5-syllable meter found in haiku and tanka poems.

Release Date:2014-01-10

Department:Crew

Job:Script

Episode Count:4

Vote Count:3

The Pet Girl of Sakurasou
7.7

The Pet Girl of Sakurasou

Sorata Kanda, a high school sophomore living in Sakurasou, the den of their academy's problem children, spends his days being dragged around by the strange residents, swearing he's going to escape Sakurasou one day.

Release Date:2012-10-09

Department:Crew

Job:Script

Episode Count:2

Vote Count:112

CLEVATESS

CLEVATESS

The story begins with Alicia — who has aspired to be a brave hero since she was little — after she has been chosen by the king to be one of 13 heroes for a quest. Wielding legendary swords, the heroes set out to subjugate the lord of magical beasts, Clevatess. However, these very heroes might bring about the realm's deadliest catastrophe that would wipe out all humanity. The world's last remaining hope lies in a baby entrusted to the lord of magical beasts.

Department:Writing

Job:Series Composition

Episode Count:1

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