Yutaka Sō

Apparently it is a pseudonym used individually and collectively by various people working around the director and producer Kan Mukai on his films and at his production companies.

• Zeppin no tsubo

  Screenplay

• Jôji no Atosaki

  Screenplay

• Aru aibu!! Zubunure

  Director

• Female Teacher: Violated to Death

  Director

• Queen of Gropers

  Screenplay

• Gakusei-zuma

  Screenplay

• Daylight Assault Game

  Director

• 

  Noctiluca

  Screenplay

• The Flesh Clock of Men and Women

  Screenplay

• Modern Female Ninja: Flesh Hell

  Writer

• 2004Class ReunionProducer
• 2001Last Dance: Divorce CeremonyExecutive Producer
• 1999HometownProducer
• 1997NoctilucaScreenplay
• 1992Drop Out: Supple Female LeopardScreenplay
• 1990Female Punisher Zebra 2: Action EditionScreenplay
• 1990Female Punisher Zebra: Sexy EditionScreenplay
• 1985Furusato poruno chikubi korogashiDirector
• 1985Red Laboratory: Please Bully MeScreenplay
• 1984Hometown Porn Girl 18! Seeding FestivalDirector
• 1983Crying Rope, Missing Black HairDirector
• 1983Apartment Wife: Daytime ProstituteDirector
• 1983The True Story of the ElementScreenplay
• 1983Female Teacher: Violated to DeathDirector
• 1982Groper Bullet TrainScreenplay
• 1982Night Nurse: The Pleasure InjectionScreenplay
• 1981Women's Dormitory (Sexual) CrimesScreenplay
• 1981Soft Skin LynchingDirector
• 1981The Bizarre Rope RitualDirector
• 1981Daylight Assault GameDirector
• 1981Lewd Photo!! White Coat and RopeScreenplay
• 1981Tattooed Slave WifeScreenplay
• 1980Complete Collection of Naked Women's PleasureDirector
• 1980Mrs. PeelingScreenplay
• 1980The Crazy WidowScreenplay
• 1980New Edition: The Complete Collection of Turkish JapanDirector
• 1980Agony!! Pacifier WidowScreenplay
• 1980The Scream of a Female DoctorScreenplay
• 1980SM ketteiban: Kusari to mesu inuDirector
• 1980Pleasure DollScreenplay
• 1980Tortured Women's Dark HistoryScreenplay
• 1979Kin'yôbi no mesu inuScreenplay
• 1979Groper HellScreenplay
• 1979Bizarre Rose MakeupScreenplay
• 1979Virgin blues: Nurete sayônaraScreenplay
• 1979Queen of GropersScreenplay
• 1979Female Teacher: AttackScreenplay
• 1979Hometown Porn Explorations: Groper Summer FestivalScreenplay
• 197917-Year-Old Document: Prostitution Reserve ForceScreenplay
• 1979Paradise Widow PlayScreenplay
• 1979Aru aibu!! ZubunureDirector
• 1979Couple RopeScreenplay
• 1979Uniform BlackmailerScreenplay
• 1979Bôkan itaburuScreenplay
• 1979Chikan zurousu dorobôScreenplay
• 1979Night Office Lady: Pleasure RoomScreenplay
• 1979Torture GameScreenplay
• 1979Female Teacher: ExposedDirector
• 1979Brutally Punishing a Female College StudentScreenplay
• 1979Slippery WifeScreenplay
• 1979Savaged and RavagedScreenplay
• 1979Night Office Lady Diary: Flesh DollScreenplay
• 1979Cruel Document: Prostitution in a HouseScreenplay
• 1979Nippon porno fudoki: Tsugaru hime matsuriScreenplay
• 1978Japanese Pornography: Kawachi's Erotic WidowsScreenplay
• 1978Real Cabaret Performance: 40 MinutesScreenplay
• 1978Groper Express: Coming SoonScreenplay
• 1978Confession of a Virgin: I Want to Be Number TwoScreenplay
• 1978Flesh-Bullet WidowDirector
• 1978Forbidden Technique to Tie a LadyScreenplay
• 1977The Shocking History of the Death PenaltyScreenplay
• 1977Monzetsu kôkyû toruko: Jun nama araiScreenplay
• 1977Japanese Night Crawl FestivalScreenplay
• 1977History of Japanese Evil and HatredScreenplay
• 1977Forbidden AffairScreenplay
• 1977Porno Exploration: Japanese Spring TalesScreenplay
• 1976Shocking! A Villain's ResumeScreenplay
• 1976Inpu nobori ryûScreenplay
• 1976Zeni-mesu: Tane uma: Bakashi aiScreenplay
• 1976Jitsuroku: Maruhi tsûkin chijo nikkiScreenplay
• 1976Salome Tsunoda's Agony and Ball-BreakingScreenplay
• 1976Jitsuroku: Maruhi Toruko jō monogatariScreenplay
• 1976Ane imôto: KanScreenplay
• 197524-Hour Affair: ScreamScreenplay
• 1975Shiofuki jô-ôScreenplay
• 1975Hometown Woman Exploration: Pink ValleyScreenplay
• 1975Bōsō poruno-zoku on'na kari (suke kari)Screenplay
• 1975Porno jôhôkyoku: TôchôScreenplay
• 1974Furusato gyoshoku tanbō monzetsu poruno matsuriScreenplay
• 1974Danchi Tsuma Maruhi Mono KurabeScreenplay
• 1974A Magnificent Affair: The Phantom WomanScreenplay
• 1974Kigeki poruno: Taxi hanjôkiScreenplay
• 1973Forbidden Love AffairScreenplay
• 1973The Blonde and Utamaro: The Lewd SpringScreenplay
• 1973Pleasure AffairScreenplay
• 1973A Magnificent Love AffairScreenplay
• 1973Apartment Wife: Secret Research SocietyScreenplay
• 1973Sex Exchange: Young Wife's PlayScreenplay
• 1972Wet Red RoseScreenplay
• 1972Kōshoku samidare onnaScreenplay
• 1972History of Adultery in JapanScreenplay
• 1971(Secret) Great Japan Obscene Stories Rare FestivalScreenplay
• 1971Sexual Wisdom: Male and FemaleScreenplay
• 1971Virgin ThievesScreenplay
• 1971Itazura shojoWriter
• 1970History of Japanese Night Crawling CustomsScreenplay
• 1970When a Woman is in AgonyScreenplay
• 1970Agony of PetalsScreenplay
• 1969Zeppin no akujoWriter
• 1969Hiden: Haragei 18-banScreenplay
• 1969Dark Japanese History: Virginity and RapeScreenplay
• 1969Zeppin no tsuboScreenplay
• 1969Jôji no AtosakiScreenplay
• 1969Inhuman Man-Killing GoddessWriter
• 1969Blue Film WomanScreenplay
• 1969The Secret Story of the Onsen Geisha: Wet PillowScreenplay
• 1969The High School Girl Who Knew Too MuchScreenplay
• 1968Diary of a Violated Virgin—FemaleScreenplay
• 1968Modern Female Ninja: Flesh HellWriter
• 1968The Flesh Clock of Men and WomenScreenplay
• 1967Shameful TechniqueScreenplay
• 1967Sexy PartnersScreenplay
• 1967Girls' DormitoryScreenplay
• 1967Attachment of a VirginScreenplay
• 1967Inmon: Shojo tsuma kantsûScreenplay
• 1966Gakusei-zumaScreenplay
• 1966The BiteScreenplay