Masaaki Sakai

2007

• [ ] The Skull Man: Prologue of Darkness (Writer) 

2010

• [ ] Two Portraits of MIYAGINO (Screenplay) 

2016

• [ ] Kenji no Honkai (Screenplay) 
• [ ] Fate of a Prosecutor (Screenplay) 

2022

• [ ] Small, Slow But Steady (Screenplay) 

2022

• [ ] Small, Slow But Steady (????)