Kōyū Ohara

1967

• [ ] The Singing Gunman (Assistant Director Trainee) 

1968

• [ ] Japan Year Zero (Assistant Director) 

1970

• [ ] Woman's Police: Appointment with Danger (Assistant Director) 
• [ ] A Young Man's Stronghold (Assistant Director) 

1971

• [ ] Apartment Wife: Affair In the Afternoon (Assistant Director) 

1972

• [ ] Shinjuku Midnight Story: Man and Woman (Director) 
• [ ] Onna tengoku: Kodane moraimasu (Director) 
• [ ] Burning Desire (Director) 
• [ ] Takara Yukari Maruhi Onsutêji (Director) 
• [ ] Sekkusu Dokyumento Karei Naru Henshin (Director) 
• [ ] August: Scent of Eros (Assistant Director) 
• [ ] Love Bandit Rat Man (First Assistant Director) 

1973

• [ ] Enka Jôshikô: Kizudarake no Kaben (Director) 
• [ ] Joshidaisei Sex Hôteishiki: Dôsei (Director) 
• [ ] Japan's Pleasure District: Three Sisters at a Turkish Bath (Director) 
• [ ] College Girls: Sex Equation (Director) 

1974

• [ ] Man & Woman Sexology: Private Lessons (Director) 
• [ ] Secret of the College Girls: Part-Time Sex Pros (Director) 

1975

• [ ] True Story of a Woman in Jail: Sex Hell (Director) 
• [ ] True Story of a Woman in Jail: Continues (Director) 
• [ ] Shiroi mesuneko: mahiru no ecstasy (Director) 

1976

• [ ] Runa's Confession: 'Men Crawling All Over Me' (Director) 
• [ ] Tokyo Secret Night Report (Director) 
• [ ] True Story of a Woman in Jail: Hell of Love (Director) 
• [ ] Student Mistress: Taste of a Virgin (Director) 

1977

• [ ] Fairy in a Cage (Director) 
• [ ] Female Convict 101: Suck (Director) 
• [ ] Fascination: Portrait of a Lady (Director) 

1978

• [ ] Sins of Sister Lucia (Director) 
• [ ] Rope Hell (Director) 
• [ ] Pink Tush Girl (Director) 

1979

• [ ] Koichiro Uno's Female Gymnastic Teacher (Director) 
• [ ] Lady Momoko's Adventure (Director) 
• [ ] Nun's Diary: Confession (Director) 
• [ ] Pink Tush Girl: Love Attack (Director) 
• [ ] Zoom Up: Rape Site (Director) 
• [ ] Youth - Part II (Director) 

1980

• [ ] From the Back or From the Front (Director) 
• [ ] Pink Tush Girl: Proposal Strategy (Director) 
• [ ] Daydream of Love (Director) 
• [ ] Akai Tôri-ame (Director) 

1981

• [ ] I Love It From Behind! (Director) 
• [ ] Female Gym Coach: Jump and Straddle (Director) 
• [ ] Essential Information for a College Girl (Director) 
• [ ] Lady Caligula in Tokyo (Director) 
• [ ] Shima Izumi no suwappingu (hi) sekkusu kōza (Director) 

1982

• [ ] White Rose Campus (Director) 
• [ ] Pink Tush Girls: Slinking Classmates (Director) 
• [ ] Zoom Up: Seiko's Thigh (Director) 
• [ ] Gigolo: A Docu-Drama (Director) 
• [ ] Oh! Takarazuka (Director) 

1983

• [ ] Gold Finger: Mô ichido okumade (Director) 
• [ ] Poruno Joyû Shigan (Director) 
• [ ] The Body Is Willing (Director) 

1984

• [ ] Sukeban Kabushiki-gaisha: Yacchae! Ojôsan (Director) 
• [ ] Red Campus: Crazy After School (Director) 
• [ ] Kaoru Oda Infiltration Experience Report Osaka Edition Abeno: 13 Sakuranomiya (Director) 

1985

• [ ] Seifuku yurizoku: Warui asobi (Director) 
• [ ] Female Leopard (Director) 

1986

• [ ] Jokyōshi 'izu noodoriko' satsujin jiken (Director) 

1988

• [ ] Orange Examination Room (Director) 
• [ ] Soul Music: Lovers Only (Director) 

1990

• [ ] あぶない！財テク主婦の株体験 (Director) 

1994

• [ ] Kieta minoshirokin (Director) 

1973

• [ ] Enka Jôshikô: Kizudarake no Kaben (Writer) 

1975

• [ ] True Story of a Woman in Jail: Sex Hell (Writer) 

1978

• [ ] Rope Hell (Screenplay) 

1979

• [ ] Youth - Part II (Screenplay) 

1980

• [ ] Momoe's Lips: Love Beast (????) 

1982

• [ ] Gigolo: A Docu-Drama (Dope pusher) 
• [ ] Zoom Up: Seiko's Thigh (Chief Editor of the Pornographic Magazine) 

2001

• [ ] Sadistic and Masochistic (????)