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Abunai Sisters: Koko & Mika

Alternative Titles



Type: OVA
Episodes: 10
Status: Finished Airing
Aired: Jan 15, 2009 to Mar 5, 2009
Producers: Pony Canyon, Fuji TV
Licensors: None found, add some
Studios: Production I.G
Source: Original
Genres: Action, Comedy, Ecchi
Duration: 3 min. per ep.
Rating: R+ - Mild Nudity


Score: 2.561 (scored by 1,520 users)
1 indicates a weighted score. Please note that 'Not yet aired' titles are excluded.
Ranked: #111782
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #6756
Members: 3,130
Favorites: 21


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  • Most Helpful (All Time)
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  • Friends Only (Weighted)
Dec 10, 2014
AzureDaora (All reviews)
You know, I have a rule in watching anime. It's called a "no drop" rule, wherein I won't drop any anime that I started to watch.

I watched Pupa, and bulldozed through it.
Watched Mars of Destruction, just laughed.
Skelter Heaven? Laughed once again.

I, however, was close to my breaking point here. I almost broke the rule in the frustration of watching anime. But I'm no pussy, oh no I'm not. I tread the most dangerous journey I have faced so far.

Abunai Sisters.

I can't even believe this anime exists. There is no SINGLE redeeming quality read more
Jul 22, 2017
bmoore07 (All reviews)
“And God said, ‘Let there be Abunai Sisters’ and God saw that this anime was good,” – Genesis 4

Brothers and sisters of the Church, it is a beautiful Sunday morning and I, your good pastor, have a sermon for your eager ears. It is with the utmost pleasure that I say right now that I have unearthed an anime gem for you all, the most unique, the most dazzling, the most lustrous gem of all. Last Sunday, the Good Lord introduced me to Abunai Sisters and it has been nothing short of a blessing. I stand before you now, I who witnessed Abunai Sisters cure read more
Sep 6, 2016
LIQfilms (All reviews)
As a filthy cave dwelling otaku male I do enjoy the physique of a woman, and anime, as a medium, is choke full of scantily dressed women in any manner of undress you could possibly want. However, Abunai Sisters is so terrifying that I never want to see a pair of breasts for as long as I live.

This show is not just bad, but offensively bad. Everything from the animation to the music to the voice acting is awful. I've been watching anime for the best part of four years now and I've come across a lot of crap but I think this show takes read more
Jan 6, 2015
RicedCat (All reviews)
The greatest anime of the 21st century.

STORY: The Abunai Sisters, Koko and Mia go on a great adventure, which I have only seen 2/10 episodes of because the other 8 have been lost in the space time continuum. However in the 2 view able episodes Koko and Mia go to locations beyond imagination, such as a beach and a car. Koko and Mia are 2 boobylicious women who hold the booby gem, which makes people want to attack them. The 2 villains (a pervert and an old lady) try to steal the booby gem on this epic quest.

Art: The greatest 3d animation that Production I.G. read more
May 4, 2012
angelsreview (All reviews)
First Reaction Review: For those that know me, you would know that Ecchi shows like this are not always bad. I like ecchi stuff sometimes, like Panty and Stocking with Garderbelt. This show on the other hand… this show… It’s a lot like Hentai but without the sex. Let me explain, the first episode shows the abunai alarm in the girls breasts (I guess they had surgery to get those done), the way that they fight the shark is shaking the bottle of Champagne up and down while making rather sexual sounds and then popping off the top. There is a lot of sexual references read more
Jun 30, 2014
Astrobro (All reviews)
Two sisters, Koko and Mika, hold the Boobie Gem, which is the only reason they're celebrities (and overly-fanserviced), because they're holding the gem, they're gonna get attacked, a lot. 2/10

The "COMBAT", is like: "A sister shakes a bottle like she's giving a handie, and then the cap blinds the robot shark, and she fires a gun and EXPLOSION" This... actually happened. 1/10

The "CHARACTERS", everyone except the sisters, ARE COMPLETELY UGLY, what kind of person thought it would be okay for a pathetic pervert and old lady for villains? Now at the sisters, they are overly-fanserviced, even though they are the most beautiful FOR THIS read more
Aug 9, 2016
gayrasu (All reviews)
This anime changed my life.
My friend and I found this gem on Crunchyroll and after the first episode we NEEDED more. So we went to find episode two, and finally, after watching Boku no Pico for three minutes, we found it on a low rent porn site. Episode two was just as amazing 10/10 art, story, and titties. We found the rest of the series on Kissanime and it lived up to their "high quality anime" tagline. Because, God Damn if this wasn't the best anime I've seen in my life, so many plot twists ::SPOILER:: like when the fish 'dies' to the poisonous meatball read more
Sep 14, 2014
upsetkiller456 (All reviews)
I was told not to watch it. So I did what any normal person would do and watched it. I have now been for the past 10 minutes at a complete loss of words, I don't know okay? I just don't fucking know. Like does this even deserve a score? Just don't watch it okay? Listen I know how reverse psychology works and now you're probably looking it up right now, just remember, you won't know either.
Jul 11, 2018
megafat (All reviews)
It's both really easy and really difficult to claim that something is either "the best" or "the worst" of something. It's really easy in the sense anyone can hyperbolically claim something is "the best" or "the worst" based on their personal preferences and/or depending on their love or hate of said thing. It can also be really difficult from a critical standpoint, since things can be good and bad for different things, and you can always call something worse.

Usually, most titles in any form of media have SOMETHING redeemable about them, even if they're really easy to hate or make fun of when it comes read more
Aug 9, 2016
Panayos (All reviews)
Ohhh yes, Abunai Sisters.

This "anime" is probably one of the funniest things I've watched in a long time.
It's great for when you're with friends and need a laugh. I watched it all in one night with my friend and we've never laughed so hard before.

Don't get me wrong, the story, art, sound, and characters all suck, but we enjoyed it a lot. It's one of those things where it's so bad it's good.

I would recommend it to everyone, because it's just so funny to watch at 2 AM when you're tired, it'll really give you a laugh.
Apr 24, 2015
pstunna (All reviews)
This series is absolute garbage. It doesn't even appear to be made by the Japanese. It looks like a shitty late night Adult Swim program. Story, characters, all irrelevant. Art style, horrifying. This series is to be avoided at all costs.
Not recommended.
Mar 25, 2016
Softhime (All reviews)
This anime was amazing, it has changed my life and I can never ever go back now. I could relate to the characters so much that I felt like I was the character, the art was amazing as well. Those beautiful boulders were what really got to me, no other anime could be any better than THIS anime. This anime was a masterpiece, a living piece of art. I'm glad I wasted my time watching this instead of actually doing something that was worth my time. You should not watch any other anime because watching any other anime would be wasting your precious time. So read more
Dec 7, 2017
LovelyTekki (All reviews)
I only watched this out of sheer curiosity when I found it under "found media" on the lost media wikia. While most lost media goes missing because it sucks, sometimes there's an exception to the rule and you unearth a hidden gem. Abunai Sisters is not one of those exceptions.

There is not a single likable character in the entire series. You have 2 annoying and self-absorbed celebrities who only talk about their boobs and how it's "so hard" being a celebrity, an annoying creepy dude who pretty much represents anyone who would unironically like this garbage show, and a straight up ripoff of Yubaba read more
Aug 10, 2019
firespeed76 (All reviews)
Ah yes. The Holy Grail of anime. The one that inspired so many young creators to pursue their careers as mangaka. Eiichiro Oda takes so much inspiration from this smash hit, not to mention Naoki Urasawa said in a recent interview that he was heavily inspired by Abunai Sisters.

"Shits fire. 10/10."
-Naoki Urasawa, 2019

Now what makes this anime so good? Let me explain that to you:

Story: 10

The story is one of the most unique crafts of beauty I've ever seen in my entire life. Creator of Gintama, Hideaki Sorachi, has commented on the sweet mixture of comedy and drama and how it was inspired him to read more
Aug 31, 2016
Sidewinder51 (All reviews)
person note: i am open to anime titles to review.

Watched All 10 epiosdes in eng dub.

This anime which may have been a cartoon (depending which country made it). This should have stayed buried. I recall the time it was so rare to find all episodes that the dvd was going for 100s on ebay. Whether it sold i don't know.... i do remember alot of people wanted it or at least asked about it.

This show had one thing going for it their two bimbo girls. Everything else was a joke. All characters shared the fact that they love helium intakes. Which tempted me quite a read more
Aug 20, 2018
Groenboys (All reviews)
God forgive me for I have sinned for watching this.

I didn't know what I was getting into. I thought it was just gonna be a lazy hentai, but boy was I wrong. Get your guns and your… ugh, booby stone, here is my review of Abunai Sisters: Koko & Mika.

Story: 3/10
So I guess Koko and Mika are celebrities and have the power of being young forever because of the… ugh, booby stone. Hokoruda wants that…. boobystone and Matsumoto helps her with that. It's a basic kids show plot, but it is so poorly excecuted. There is no natural flow whatsoever and the sisters do stuff read more
May 2, 2018
Starfacto (All reviews)
Abunai Sisters is powerful. I legitimately did not know how to rate this show, so I used random dot org. It told me to give this show a 2, so I gave it a two. Watch this show.

I have to prolong this review please help. I have no more words and please help the guy in the discord call with me is also trying desparately to extend the length of this review why does MAL have such an absurd minimum requirement for the review also read the 2011. I have no more words please stop holding me hostage with this absurd requirement.
Mar 19, 2018
RinSalamander (All reviews)
This is a sore. Not like an eyesore, but a sore that is physically on my body after watching this. I cannot describe the pain from enduring this anime.
I've seen so many bad, bad shows, anime or no, but THIS, THIS TAKES THE CAKE.
If I could take this entire day back, I probably would. This destroyed half my soul, I feel violated, and all my human rights have been stolen away. On top of all this, Production I.G., known for their work on Attack on Titan, made this. Now again for the people in the back, PRODUCTION I.G., KNOWN FOR THEIR WORK ON ATTACK ON read more
Dec 21, 2017
Anis2003 (All reviews)
This... I have never seen the greatest anime of all time in my life!!!!!!!!!!!!!!! :00.
Everything is beautiful!! Just!!! Beautifull!!!! Like??
The story, art, character.. everything is beautiful that I couldn't even explain!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! *tears of joy*

Okay but really. I'm suprise this thing have higher rank that Skelter Heaven.
How the fuck Production I.G, a popular anime studio decide to create this
abomination of hell??
This so called '''''anime''''' fails every kind of quality.
I once saw this in KissAnime (yep it fucking exist in that website as well) and I though I'd like to challange myself "what if I watch the entire anime just like what I did to Skelter read more
Jan 6, 2017
Yertz_Nilo345 (All reviews)
The plot points were generally upfront and obvious, like the joke I just made. I'd try to be more sarcastic but this was pretty crap; it doesn't warrant the effort. Everything was bad. Art, animation, character development, etc. It was just all around bad. It even lacks the "So Bad It's Good" vibe. Apparently this review is too short so I'll stretch it out a bit.

The lip syncing was completely off. The character designs were pretty ridiculous. The one positive is the part were one of them uses a special butt attack probably inspired Keijo!!!! somehow, maybe. Also, the volleyball probably inspired Haikyu!, possibly. read more