Movies Similar to Sex Detective Hatenashi

Female Gym Coach: Jump and Straddle(1981)

It’s coming up to competition time for the pretty office girls of the Kara Cosmetics Company. Kei (Junko Asahina) and her co-workers are preparing their amateur rhythmic gymnastics team for an upcoming competition. In order to assist the sexy ladies, Aoki (Funasaku Sasairi) is brought in as their new coach. As the team wonders about the coach’s ability to perform both on and off the court, Kei’s relationship with him is revealed. Long ago, Aoki slept with Kei before a competition and she lost. Now, he’s worried it will happen again! Can the coach overcome his sexual issues and help Kei win this time?

Gigolo: A Docu-Drama(1982)

Kabukicho, Shinjuku, the number one entertainment district in Japan. There are professional gigolos who make this sleepless city their base and get what they want, from money and women to desire. They are the "gigolo" gang led by the charismatic Naoki Fushimi. Akira, Yuki, and Ryoma are aiming to become full-fledged gigolos. Akira has a girlfriend named Mariko who is a model for vinyl magazines. But that's not enough for a gigolo. For a gigolo, having sex for free is meaningless. Yuki finds a soapland girl named Misa, and Ryoma finds a woman named Yoko, and they spend a sensual night together. Meanwhile, Akira is taken by Mariko to help with a vinyl magazine shoot. Akira is getting increasingly impatient with his life, which can hardly be called gigolo...

Hakui kankin(1985)

A mysterious woman, Jun, comes to the hospital. Jun's disease was called "clitoral hypertrophy," which meant that she swelled to a huge size when caressed. Shunsuke, the doctor in charge, and Akiko, the nurse, but also Kyoji and Hiromi, who were secretly sitting in the back of the examination room, were surprised by its size. As soon as Rinko, who is on duty at the hospital late at night, enters a room, she is attacked by a man whose entire body is wrapped in bandages. Unaware of this, Akiko and her doctor, Kyoji, go straight to a love hotel after finishing their shift. The next morning, Jun visits again, and as she is lying on the examination table with her lower body exposed, a mummy man suddenly appears...

Beautiful Mystery(1983)

Shinohara, a young bodybuilder, joins a para-military sect in northern Japan. His instructor, Takizawa, takes a liking to the new recruit. After an early “special” training session the two develop a lasting and loving relationship.

Mibōjin geshuku: Shitamo kashimasu yojōhan(1977)

Decotora Gal 3: Sena(2010)

Sena has had a care-free deco-truck business, but one day, she receives a strange request by a cheap hoodlum, Takizawa, to carry a blind stripper, Azumi, to a certain location. She reluctantly accepts it, but yakuza members begin a persistent search for Takizawa, who turns out to have stolen their company’s money. Here comes the long-awaited new deco-truck series featuring the idol, Saori Hara, rolling down the highway on a ton of love, action, and steam!

Pink Physical Examination(1985)

In a hospital with a near sighted doctor, horny nurses, cosplaying patients and stiffs in the basement the only healing taking place is sexual.

Soreyuke chikan(1977)

When two perverts get caught trying to intrude on couples making out in the city park they decide to try some hiking and orienteering in the great outdoors. When they come across various couples making out they hatch a plan to join in the action. Oh look… it’s a bear!

The Lickerish Stranger(2017)

Nagisa is living together with handsome college professor, Kotaro.However, lately Kotaro has been particularly violent towards Nagisa during sex, even going so far as to hurt her. One day, Etsuko, a woman claiming to be Kotaro’s sister, appears at their house.Etsuko asks to stay with them for a while, however Nagisa is not convinced that she is really his sister because she is so sloppy and unlike Kotaro. It also bothers her that the two often go off to talk in secret. Nagisa later finds out that Etsuko has been secretly watching her and Kotaro having sex while masturbating.She asks Kotaro to kick Etsuko out, but he refuses to listen, and Etsuko’s antics become more and more intense. Eventually, Nagisa finds out that she is pregnant. With this new development, Nagisa thinks that she can marry Kotaro and finally be able kick Etsuko out. Little does she know, this will be the beginning of her confinement…

Osasuri hentai musume(1978)

After failing his university entrance exams, a young man is now living alone in an apartment in Tokyo. He thinks he has to study, but all the women in the city are attractive, and his thoughts are full of erotic fantasies.

Yawahada Iro-kurabe(1984)

Fujiko has won a happy marriage after competing with her friend Kanae for Shunsuke, but her boring daily life and dissatisfaction with her husband only grows day by day. Meanwhile, Kanae, who has married a doctor named Seizo and lives a wealthy life, is also fed up with her boring daily life, although she has given up Shunsuke to Fujiko.

Fujio Akatsuka's Gag Porno: In the Mood Once Again(1979)

Softcore porn collaboration between Nikkatsu director Shinya Yamamoto and gag manga artist Fujio Akatsuka, utilizing both creators' comedy techniques in an erotic setting.

Sanjigen tōshi: Sex ultra eye(1984)

A gynecologist, his son and a friend have erotic adventures with a device that can see through clothes.

Groper Train: School Uniform Hunter(2007)

Yuri is a high school girl curious about sex but unfortunately she gets involved with a scam artist who hustles men for money after enticing them to grope her on the subway.

Silent Suffer(2016)

Yuriko (Kotomi Asakura), who lost her only young daughter and divorced, became a dumb woman due to the shock. She then started a part-time job at a small lunch box shop in a provincial city where she had drifted. The owner, Sato, had a wife, Kazuko (Firefly), and a daughter, Kyoko (Rina Hatsume). It was a dumb relationship. There was a man in the store who had a dark shadow who came to buy two lunch boxes every day. Yuriko, who cares about the man, follows him, and she finds out that the man is making a woman named Maki (Kyouko Maki) prostitute in a truck parked in the open space she arrived at ...

Temptation Prostitute of Sora and Shidod(2015)

On the edge of a small ocean town, there stands a small establishment called “Do-re-mi”. Three prostitutes, Sora, Shido, and Rei work here. They live together with the owner of the place, Kaname Toki in an at-home environment. Lately, Kaname’s kohai, Fuwa has been coming by frequently. Seeing Fuwa, who has lost his ability to get hard, Kaname’s father Minami invites him to the establishment to try to stimulate him. His partner is Shido, who has had an interest in Fuwa, however, Fuwa’s expression remains stiff. The reason for this is that the mayor of the town is leading a redevelopment movement, and Kaname’s establishment is in an area that needs to be evicted. Fuwa has been in charge of the eviction and is thus troubled. Shido finds out about his situation and the shop’s upcoming fate. Meanwhile, Kaname proposes to Sora and she begins to have feelings for him. Both parties are at a crossroads…. what will they choose?

Fûzoku zukan: Yare nai otoko-tachi(2019)

It is the last night of the Heisei era. Rokuo, who lives in the employee dormitory of a local brothel, is visited by Yoshio, his senior, and they engage in a silly conversation.

Rasuto kyabaree(1988)

A bittersweet coming of age story of a high school girl, her father and the end of an erotic night club. An allegorical requiem for Nikkatsu studios.

Danchizuma: Furin Marumie(1991)

A woman has recently married an adult toy manufacturer. He researches new vibrators in the product development department. She hopes that if she marries such a man, she will be able to use the vibrator as much as she likes and have fun every night, but her husband never uses a vibrator on her. She is extremely dissatisfied with this. Meanwhile, her husband's boss, the section chief, is currently developing an anal vibrator, and in the name of experimenting with it, he only uses the anal vibrator on his wife. Her boss's wife wants him to use a normal vibrator, but she is dissatisfied that he only uses it on her anus. As the wives were talking about this, the new wife expressed her interest in anal vibrators, so they decided to swap husbands and have fun with the one in the front and the one in the back. They immediately decided to swap wives...

Mermaid Wife at Fishing Port(2024)

In a small fishing village in northern Kanto, Nami stands at the edge of the dock, waiting for her husband’s boat to return. While waiting, Nami lives with her father-in-law, Gengoro, who uses her nightly as he pleases. One day, a man named Kaneda washes up at the port, in hiding after committing a heinous sex crime, and begins to work for a fisherman named Kunio. While Kaneda is doing his best to reform his life, all hell breaks loose when he crosses paths with Nami, and his natural urges kick back in.