| Secret Flower | 1971 | Screenplay |
| Wet Dice | 1974 | Screenplay |
| Cruel Bondage Picture Legend | 1976 | Screenplay |
| Case of the Disjointed Murder | 1977 | Screenplay |
| Shinjuku Midare Machi: Ikumade Matte | 1977 | Writer |
| Semi-document: Shojo chitai | 1977 | Screenplay |
| Hell's Angels: Crimson Roar | 1977 | Screenplay |
| Bathhouse 911: Jellyfish Bliss | 1978 | Screenplay |
| The Woman with Red Hair | 1979 | Screenplay |
| Prey | 1979 | Screenplay |
| Super Gun Lady: Police Branch 82 | 1979 | Screenplay |
| Masked Crusader, Mr. Jirenman | 1979 | Screenplay |
| Koichiro Uno's Moist and Steamy | 1979 | Screenplay |
| Heaven Sent | 1979 | Writer |
| Rape Ceremony | 1980 | Screenplay |
| Joshidaisei: Kairaku Ayame-ryô | 1980 | Screenplay |
| Hard Scandal: Sex Drifter | 1980 | Screenplay |
| Pleasure Campus: Secret Games | 1980 | Screenplay |
| Blue Lagoon: A Summer Experience | 1981 | Screenplay |
| Rolling on the Road | 1981 | Screenplay |
| Distant Thunder | 1981 | Screenplay |
| Cabaret Diary | 1982 | Screenplay |
| Time and Tide | 1983 | Writer |
| Zoom Up: Graduation Photo | 1983 | Screenplay |
| Modori River | 1983 | Screenplay |
| Double Bed | 1983 | Screenplay |
| Cursed Village in Yudono Mountains | 1984 | Writer |
| The Tragedy of "W" | 1984 | Screenplay |
| Flakes of Snow | 1985 | Screenplay |
| Bed-In | 1986 | Screenplay |
| Captured Mother and Daughter: She Beast | 1987 | Screenplay |
| Machi nureta onna | 1987 | Screenplay |
| Rinbu | 1988 | Screenplay |
| Love Bites Back | 1988 | Writer |
| Revolver | 1988 | Screenplay |
| Investigation of a Typical Love | 1992 | Screenplay |
| The City That Never Sleeps: Shinjuku Shark | 1993 | Screenplay |
| Ｆ．ヘルス嬢日記 | 1996 | Screenplay |
| Arigatou | 1996 | Screenplay |
| Body and Soul | 1997 | Screenplay |
| East Side Waltz Garden of Earthly Delights | 1998 | Writer |
| Bonds | 1998 | Screenplay |
| Minazuki | 1999 | Screenplay |
| KT | 2002 | Screenplay |
| Vibrator | 2003 | Screenplay |
| Seicho Matsumoto Special: Fingers | 2006 | Producer |
| Seicho Matsumoto Special: Fingers | 2006 | Screenplay |
| It's Only Talk | 2006 | Screenplay |
| Partners | 2010 | Screenplay |
| Someday | 2011 | Writer |
| The War and a Woman | 2013 | Screenplay |
| Backwater | 2013 | Writer |
| Unlucky Woman's Blues | 2014 | Screenplay |
| Kabukicho Love Hotel | 2014 | Screenplay |
| Undulant Fever | 2014 | Writer |
| This Country’s Sky | 2015 | Screenplay |
| Dear Etranger | 2017 | Screenplay |
| It Feels So Good | 2019 | Screenplay |
| 2 Women | 2022 | Writer |
| Tenjō no Hana | 2022 | Screenplay |
| September 1923 | 2023 | Writer |
| A Spoiling Rain | 2023 | Screenplay |
| The Stars and the Moon are Holes in the Sky | 2025 | Screenplay |
