Rei Sakamoto

1995

• [ ] Rafflesia (Second Assistant Director) 

1996

• [ ] I Stand Alone - SEX & LOVE (Assistant Director) 
• [ ] Slow Motion (Assistant Director) 

1997

• [ ] Lascivious Nurse Uniform Diary: Two or Three Times, While I'm Wet (Assistant Director) 
• [ ] Apartment Wife: Adultery in broad daylight (Assistant Director) 
• [ ] Raigyo (Assistant Director) 
• [ ] Hakui honban: Hageshii aegi (Assistant Director) 

1998

• [ ] My Brother's Lover (Assistant Director) 
• [ ] Apartment Wife: Lost Cat (First Assistant Director) 

1999

• [ ] New Apartment Complex Wife: Adultery is a Taste of Honey (Assistant Director) 
• [ ] Sex Friend Nurezakari (Director) 

2000

• [ ] Apartment Wife: Adulterous Love (Assistant Director) 
• [ ] My Beloved Wife: A Summer Fling (Assistant Director) 

2001

• [ ] The Sister‑in‑Law Who Yearns: A Promiscuous Relationship (Assistant Director) 
• [ ] The Suicide Chain (Director) 

2003

• [ ] Hôman bijo: Shitakute tamaranai! (Director) 

2004

• [ ] Tsumugi (First Assistant Director) 

2005

• [ ] Love Square (Director) 

2007

• [ ] The Strawberries and the Gun (Director) 

2011

• [ ] Underwater Love (Assistant Director) 

2015

• [ ] In the Case of Noriko (Director) 

2016

• [ ] My Technicolor Girl (Director) 

2017

• [ ] Boys Hitting the Road (Assistant Director) 
• [ ] まんが島 (Assistant Director) 
• [ ] Tsuchinoko: The Comedy (Assistant Director) 

2019

• [ ] Tsundere musume: Okute na shotaiken (Assistant Director) 

2020

• [ ] Reiko and the Dolphin (Assistant Director) 

2023

• [ ] Whispering Stillness (Director) 

1995

• [ ] Groper Train: Unequaled Woman (Associate Producer) 

1996

• [ ] SEXY COP 348 (Production Assistant) 

2005

• [ ] Affair Complex Sad Iro Yanen (Associate Producer) 

2014

• [ ] Broken Pieces (Executive Producer) 

2022

• [ ] Love in a Single Room (Producer) 

2024

• [ ] Shinpei (Producer) 

1998

• [ ] Demeking (Thanks) 

2001

• [ ] Wafuku jukujo no seiseikatsu: Nijû sanjû yonjussai (Thanks) 

1986

• [ ] S&M Hunter (Assistant Gaffer) 

2004

• [ ] The Devil's Cop Festival (????) 

2014

• [ ] Hello Titty 12 (????)