Koichi Yajima

Writing

Known for

Wasteful Days of High School Girls

Wasteful Days of High School Girls

2020

Six Lying University Students

Six Lying University Students

2024

Caseworker's Diary: Constitutional Rights, The Minimum Standard of Wholesome and Cultured Living

Caseworker's Diary: Constitutional Rights, The Minimum Standard of Wholesome and Cultured Living

2018

Only Yesterday

Only Yesterday

2021

Haruka no Hikari

Haruka no Hikari

2021

Cruel Crowd

Cruel Crowd

2017

Busujima Yuriko no Sekirara Nikki

Busujima Yuriko no Sekirara Nikki

2016

Ima da kara, shinsaku drama tsukuttemimashita

Ima da kara, shinsaku drama tsukuttemimashita

2020

Yukio in Tokyo

Yukio in Tokyo

2023

Writing9

Six Lying University Students

Six Lying University Students

2024

Screenplay

Yukio in Tokyo

Yukio in Tokyo

2023

Writer

Haruka no Hikari

Haruka no Hikari

2021

Original Story

Only Yesterday

Only Yesterday

2021

Screenplay

Ima da kara, shinsaku drama tsukuttemimashita

Ima da kara, shinsaku drama tsukuttemimashita

2020

Writer

Wasteful Days of High School Girls

Wasteful Days of High School Girls

2020

Screenplay

Caseworker's Diary: Constitutional Rights, The Minimum Standard of Wholesome and Cultured Living

Caseworker's Diary: Constitutional Rights, The Minimum Standard of Wholesome and Cultured Living

2018

Screenplay

Cruel Crowd

Cruel Crowd

2017

Screenplay

Busujima Yuriko no Sekirara Nikki

Busujima Yuriko no Sekirara Nikki

2016

Writer

Creator1

Cruel Crowd

Cruel Crowd

2017

Creator