Writer
Birthday: (NaN)
Birthplace: Tokyo, JapanAlso known as: 下山 健人,
Uchu Sentai Ky...
8.5
Writer
Doubutsu Senta...
8.5
Writer
Naruto Shippūd...
8.5
Writer
Naruto Shippūd...
8.5
Series Composi...
Shinkansen Hen...
8.4
Series Composi...
Shomin Sample
8.4
Series Composi...
Bleach
8.383
Writer
Bleach
8.383
Series Composi...
Our Last Crusa...
8.3
Series Composi...
No Game No Life
8.124
Writer
Gintama
8.1
Script
Blue Dragon
8.1
Script
Gintama
8.1
Writer
Blue Dragon
8.1
Writer
Gintama on The...
8
Screenplay
Kamen Rider Zi...
8
Writer
Anti-Magic Aca...
7.9
Writer
Death March to...
7.9
Writer
Anti-Magic Aca...
7.9
Series Composi...
We Rent Tsukum...
7.7
Series Composi...
Uchu Sentai Ky...
7.7
Writer
Masamune-kun's...
7.697
Writer
Shenmue the An...
7.5
Series Composi...
Shenmue the An...
7.5
Script
Power Rangers ...
7.5
Writer
Tokumei Sentai...
7.4
Writer
Kamen Sentai G...
7.4
Writer
Mission: Yozak...
7.4
Writer
Kamen Rider Zi...
7.3
Writer
Kaizoku Sentai...
7.3
Writer
The Greatest D...
7.2
Writer
Shuriken Senta...
7.1
Story
Shuriken Senta...
7.1
Writer
Tensou Sentai ...
7.1
Writer
Come Back! Shu...
7
Writer
Shuriken Senta...
7
Screenplay
The Ones Within
7
Writer
Armed Girl's M...
6.912
Writer
Armed Girl's M...
6.912
Series Composi...
Good Luck Girl!
6.9
Series Composi...
Shinkansen Hen...
6.8
Writer
Uchu Sentai Ky...
6.7
Writer
Kamen Rider Zi...
6.7
Writer
Deep Insanity:...
6.667
Series Composi...
Deep Insanity:...
6.667
Writer
Tokumei Sentai...
6.6
Writer
Servant x Serv...
6.6
Series Composi...
Doubutsu Senta...
6.538
Writer
They're Back! ...
6.5
Writer
Kikaider REBOOT
6.5
Writer
NARUTO Spin-Of...
6.5
Writer
Tensou Sentai ...
6.4
Screenplay
Kamen Rider
6.4
Writer
Kamen Rider
6.4
Series Composi...
Kaiju Girls Bl...
6.3
Writer
Shuriken Senta...
6.2
Writer
Kamen Rider He...
6.1
Writer
Samurai Sentai...
0
Writer
Kamen Rider Wi...
0
Writer
Gintama on The...
0
Screenplay
Kamen Rider Zi...
0
Writer