
Writer
Birthday: (NaN)
Birthplace: Tokyo, JapanAlso known as: 下山 健人,

Super Sentai S...
10
Series Composi...

Kamen Rider Zi...
9
Original Story

Kamen Rider Zi...
9
Writer

Uchu Sentai Ky...
8.5
Writer

Doubutsu Senta...
8.5
Writer

Naruto Shippūd...
8.5
Writer

Naruto Shippūd...
8.5
Series Composi...

Bleach
8.357
Writer

Bleach
8.357
Series Composi...

Shomin Sample
8.334
Series Composi...

Our Last Crusa...
8.197
Series Composi...

Gintama
8.097
Script

Gintama
8.097
Writer

No Game No Life
8.093
Writer

Blue Dragon
7.934
Script

Blue Dragon
7.934
Writer

Death March to...
7.802
Series Composi...

Death March to...
7.802
Writer

Uchuu Sentai K...
7.8
Writer

Anti-Magic Aca...
7.744
Writer

Anti-Magic Aca...
7.744
Series Composi...

Masamune-kun's...
7.707
Writer

Shinkansen Hen...
7.7
Series Composi...

Mission: Yozak...
7.546
Writer

Power Rangers ...
7.5
Writer

Kamen Sentai G...
7.4
Writer

Kaizoku Sentai...
7.3
Writer

Shenmue the An...
7.227
Series Composi...

Shenmue the An...
7.227
Script

We Rent Tsukum...
7.2
Series Composi...

We Rent Tsukum...
7.2
Writer

Shuriken Senta...
7.1
Story

Shuriken Senta...
7.1
Writer

Tensou Sentai ...
7.1
Writer

Tokumei Sentai...
7.1
Writer

The Greatest D...
7.095
Writer

Come Back! Shu...
7
Writer

Shuriken Senta...
7
Screenplay

The Ones Within
6.9
Writer

Shinkansen Hen...
6.8
Writer

Armed Girl's M...
6.705
Writer

Armed Girl's M...
6.705
Series Composi...

Uchu Sentai Ky...
6.7
Writer

Kamen Rider Zi...
6.7
Writer

Servant x Serv...
6.647
Series Composi...

Tokumei Sentai...
6.6
Writer

Kikaider REBOOT
6.6
Writer

Good Luck Girl!
6.591
Series Composi...

They're Back! ...
6.5
Writer

Doubutsu Senta...
6.5
Writer

Tensou Sentai ...
6.4
Screenplay

Kamen Rider
6.378
Writer

Kamen Rider
6.378
Series Composi...

Kaiju Girls Bl...
6.3
Writer

NARUTO Spin-Of...
6.3
Writer

Shuriken Senta...
6.2
Writer

Kamen Rider He...
6.1
Writer

Gintama on The...
6
Screenplay

Deep Insanity:...
5.909
Series Composi...

Deep Insanity:...
5.909
Writer

Gintama on The...
4
Screenplay

Samurai Sentai...
0
Writer

Kamen Rider Wi...
0
Writer