Cool Devices
クール･ディバイシス
We checked 8 streaming services in India on 04 Jun 2026 at 11:37 IST
About
A set of Japanese animated stories revolving around various sexual perversions. In one, a rich young heir wires his house with video cameras in order to satisfy his longings for his sister. In another, a corrupt police detective uses mind-control drugs to hold a teenage girl as his sexual prisoner.
Cast
Kumiko Nishihara
as Maya Mizutani (voice)
Yoko Asada
as Cat Girl
Masako Katsuki
as Eluma
Yuriko Yamaguchi
as Maya Mizutani
Mai Wong
as Estilgar
Ryoka Yuzuki
as Ai Yuki
Mika Kanai
as Younger Sister
Yuko Kobayashi
as Teacher
Tsutomu Kashiwakura
as Sakai
Masami Toyoshima
as Additional Voice
Yumiko Shibata
as Sana Fujisawa
Sumie Baba
as Kirei
Kaoru Shimamura
as Rui
Seasons
Episodes
Season 1
Operation 01: Curious Fruit
An innocent girl named Ai is lured by her curiosity into the underground world of sado-masochists and exhibitionists by a couple who visits the club where she and her girlfriends are visiting. For some strange reason, Ai follows the two, and is drawn into a world of bondage and rough sex. The experience transforms the girl, who embraces the lifestyle, and a weird but romantic relation with a man she is drawn to.
Operation 02: Sacred Girl
A reclusive young man and his younger sister live in a mansion together, where the young man frequently hosts sex parties every night, which he watches in his room via a network of surveillance cameras. It is later revealed that he wants to have sex with his sister, which he eventually does in a consensual scene near the end of the episode.
Operation 03: Lover Doll / Winter Swimsuit / Enema
Lover Doll An anthropomorphic female rabbit is held in a cell as sexual slave. Soon, a Catgirl enters her room and has sex with the rabbit through the cell. Later, a man comes in and punishes the Catgirl for wandering off, then proceeds to rape her. Winter Swimsuit With a subtle BDSM premise, a teenage couple has sex in what seems to be a closed public bath house at night in the middle of winter. A reluctant girl is fondled, has her bathing suit cut off to expose her erogenous zones, and is coerced into performing various sex acts by her unnamed male partner. Enema An unnamed girl is coaxed into having sex in the women's bathroom. The ensuing sex acts culminate in anal sex which cures her constipation.
Operation 04: Kirei
The episode begins when a young blue-haired woman is shown having sex with a group of weird men, afterwards they throw her into an oubliette where she then emerges as a butterfly. In what seems to be an island paradise, two well-endowed girls called Rui and Kirei are on vacation. As time progresses, they notice that there is something unusual with the natives and the beautiful butterflies that inhabit the island. As they begin to notice these oddities, they begin to have sex with each other and the natives. The episode ends with the girls being gang raped, then thrown down the same oubliette from the beginning of the episode, and emerging as butterflies.
Operation 05: Seek I (Slave Girl Marino)
The story begins when an ordinary girl named Marino Okura-(a virgin) is being chased by two young men who are revealed to be human traffickers. After getting captured, she is then shown in their car nervous and scared. When she attempts to escape, she is pulled back and brought into the estate of the dominatrix Saki and her unnamed master. Saki and her master spend the episode training Marino to be their sex slave, a process which involves Marino being forced to perform various sex acts and submit to the demands of her masters. As the episode progresses, it becomes apparent that Saki's current master is actually the son of her original master, now deceased. Saki's original master made a living as a world-famous bondage artist. This, however, was only his public face. His true face was that of a masochist female dominator. The episode culminates with Marino being left chained in a cell to await her next "session".
Operation 06: Seek II (SM Queen Saki)
This episode is a continuation of Operation 05, and takes place during a sex party commemorating the anniversary of Saki's master's death. Saki presents the guests with a gift: Marino and two other girls (Momomi and Haruka), as their sex toys for the evening. Despite the introduction of new characters, this episode focuses mostly on Saki and her relationship with her previous master. Scenes of Saki reminiscing about her S&M training as a child are interspersed with displays of Marino and the other girls being subjected to humiliation and torture at Saki's hands. As Saki masturbates to thoughts of her deceased master, the three slaves enter the room, armed with bondage equipment, and take Saki back to the main party hall. Here, her current master presents Saki to the party guests for their enjoyment. Saki is subjected to much the same treatment to which she earlier exposed the other girls and is gang-raped; the episode ends with Saki being chained in a cell of her own.
Operation 07: Yellow Star
Yellow Star (イエロースター Ierōsutā) – Ayana's mother marries a famous detective and introduce him to Ayana. The detective is mysterious and furtive, a 'hero' in local media, who had been following the distribution of an illegal drug, called "yellow star", which is a mild hallucinogen, paralyzing agent, and aphrodisiac. Ayana brags about how big her new father is to her boyfriend, Kohei. The detective is revealed to be corrupt, killing a competitor on a train by placing an explosive device near him. He thanks two shadowy figures who provided him with both the explosive and "yellow star". He grows close to Ayana and hatches various plans. It becomes apparent that the detective is buying a steady supply of the illegal drug as part of a long-term strategy to sexually abuse his stepdaughter. The abuse escalates as Ayana herself becomes addicted to Yellow Star, unable to refuse her new father's increasingly violent sexual fantasies. Ayana's abuse culminates in her gang rape at the hands of her stepfather and two well-endowed drug manufacturers. After the incident, Ayana realises the abuse will continue with more rape and drug abuse. She kills her stepfather and returns to a normal life with her boyfriend, Kohei. In the final scene, Ayana waits in a park for Kohei (who believes she remains a virgin for him) but is abducted before they can meet. The two men who kidnapped her are soon revealed to be the distributors of "yellow star" and force her into another abusive encounter with them. It is implied that their endless supply of Yellow Star will equate to Ayana's endless gang-rape. The character designer for this episode was Yasuomi Umetsu. It can be seen as a precursor to Kite. In a scene cut from the original, the two Yellow Star manufacturers are shown to be demanding to engage in sexual activity with Ayana as their price for access to the drug.
Operation 08: Slave Warrior MAYA I
The first of a two-episode story arc, this episode begins the story of Maya Misutani, an average Japanese high school girl who is transported to an alternate dimension and inadvertently fulfills a legend. Maya is transported to another world, where she meets 2 lizard like creatures (named Heckle and Jaekel, a reference to Heckle and Jeckle) who use trickery to convince her to take all of her clothes off where she is sold into slavery to Lord Estilgar, and used in experiments to turn her into a sex slave. She escapes and evades recapture by using a hidden power within herself to slaughter her opponents. This display of power gets the attention of two warring human and alien factions. Maya is recaptured, subjected to more sexual experiments, and is transformed into a hermaphrodite.
Where does Cool Devices rank today?
Cool Devices is #10000 on the Bowood.TV Daily Streaming Charts today.
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Watch Cool Devices Online Free — All Episodes in HD
Stream Cool Devices online free in HD on Bowood.TV. A well-rated animation, sci-fi & fantasy, and crime series originally produced in Japanese and released in 1995, it's earned a solid 7.7/10 from 9 viewers worldwide.
About Cool Devices
A set of Japanese animated stories revolving around various sexual perversions. In one, a rich young heir wires his house with video cameras in order to satisfy his longings for his sister. In another, a corrupt police detective uses mind-control drugs to hold a teenage girl as his sexual prisoner. Across 1 season and 11 episodes.
Cool Devices Cast and Characters
The cast features Kumiko Nishihara (as Maya Mizutani (voice)), Yoko Asada (as Cat Girl), Masako Katsuki (as Eluma), Yuriko Yamaguchi (as Maya Mizutani), and Mai Wong (as Estilgar). Their performances are a major reason Cool Devices has built such a passionate audience.
Where to Watch Cool Devices Online
On Bowood.TV you can watch Cool Devices free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.
▶ Watch Cool Devices NowWhy People Are Watching Cool Devices
There's a reason Cool Devices keeps showing up on "must-watch" lists. What makes it work is tight pacing that earns its twists and world-building that respects the audience's intelligence. If you enjoy Japanese storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about Cool Devices
Where can I watch Cool Devices online for free?
You can watch Cool Devices online free on Bowood.TV. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does Cool Devices have?
Cool Devices has 11 episodes across 1 season. All episodes are available to stream right here on Bowood.TV.
Is Cool Devices good? What's the rating?
Cool Devices holds a 7.7/10 rating based on 9 reviews — well above average.
Who is in the cast of Cool Devices?
The main cast includes Kumiko Nishihara, Yoko Asada, Masako Katsuki, and Yuriko Yamaguchi, plus a strong supporting ensemble.
Is Cool Devices available in Japanese?
Yes — Cool Devices was originally produced in Japanese and that's the version you'll stream here on Bowood.TV. English subtitles are provided when available.
When was Cool Devices released?
Cool Devices first aired in 1995.
Do I need an account to watch Cool Devices on Bowood.TV?
No. Bowood.TV is free and you can watch Cool Devices without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Series You Might Like
If you enjoyed Cool Devices, check out Harem Camp!, Overflow, A Predator in a Skirt, Weather Report Girl, and The Share House's Secret Rule.
Frequently Asked Questions
Where can I watch Cool Devices for free?
You can watch Cool Devices online for free on Bowood.TV. All 11 episodes across 1 season are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does Cool Devices have?
Cool Devices currently has 1 season and a total of 11 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on Bowood.TV and continue watching from where you left off.
What is Cool Devices about?
A set of Japanese animated stories revolving around various sexual perversions. In one, a rich young heir wires his house with video cameras in order to satisfy his longings for his sister. In another, a corrupt police detective uses mind-control drugs to hold a teenage girl as his sexual prisoner. It belongs to the Animation, Sci-Fi & Fantasy, Crime genres.
In which language is Cool Devices originally available?
Cool Devices was originally produced in JA. On Bowood.TV the show is available in its original JA audio. Check the player options on the watch page for available subtitle tracks.
When was Cool Devices first released?
Cool Devices first premiered on April 25, 1995 (1995). The series has since concluded its run.
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