Alien 9

Soon after entering middle school, Yuri Otani is coerced into joining the "Alien Party," a single-minded group with one goal: capture any alien attempting to enter school grounds. Terrified of aliens her entire life, Otani is anything but thrilled, and to make matters worse, her kit includes a "Borg"—an alien-like creature tasked with ensuring her safety. Despite this, she finds solace in her two partners: the independent and reliable Kumi Kawamura, and the smart and energetic Kasumi Tomine.

As the Alien Party works to fend off extraterrestrial threats, will their roller blades and lacrosse sticks be enough to overcome the dire challenges ahead, or will they succumb to fear and suffer the grim consequences of defeat?

[Written by MAL Rewrite]

Otani, Yuri Main

Ihata, Juri Japanese

Kawamura, Kumi Main

Shimizu, Kaori Japanese

Tomine, Kasumi Main

Shitaya, Noriko Japanese

Borg Main

Nakao, Ryusei Japanese

Hisakawa, Megumi Main

Hisakawa, Aya Japanese

Tamaki, Miyu Supporting

Nakayama, Sara Japanese

Knife, Yellow Supporting

Ishida, Akira Japanese

Otani, Satoko Supporting

Katou, Yuuko Japanese

Hironaka, Tomoya Supporting

Sakuma, Rei Japanese

Namiki, Manabu Supporting

Suzuki, Kazuhito Japanese

Matsukura, Yuuji Producer

Oosawa, Nobuhiro Producer

Tanaka, Shigehiro Producer

Yagi, Hitoshi Producer

Reviews

Feb 15, 2025

ThexxMixx

Recommended

Spoiler free and short review!
I cannot understate how much this broke my heart. Alien 9 caught me off guard, I read the concept and went into it thinking that it'd be a short but quirky and fun adventure of girls fighting aliens and having to balance it with school life! Nope! Not at all!

Alien 9 is a harrowing story about growing up, the fear of being alone, and I'm sure a plethora of other messages and metaphors I was unable to pick up on. The premise seems simple, three girls from middle school are chosen by their classes to fight off alien invaders that come ... to their schoolgrounds with unknown reason, but usually it's just to cause chaos and attack the students.

The real kicker is in the emotional pull. Some of the vocal performances and the animations really push the heartbreak, Otani is one of the sweetest characters ever and doesn't deserve to be thrust into this unfortunate, hellish occupation. None of the main girls do. What with the emotional, physical and mutational turmoil it puts them through.

The show is great, but short, and so it's highly suggested to continue with the manga after watching. It's more of this fascinating little world, and even more exploration with the characters. It's really truly fantastic.

Reviewer’s Rating: 10

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Aug 13, 2025

TeeRaySays

Mixed Feelings

Has that madoka this is a happy looking series but can get really dark thing going on but just doesn’t come across as well visually. Most things just look awkward but you can see the vision that these scenes in the manga are probably horrifying. Not much going for it out side of some cool visuals and a mood setting first episode. Main character just says I’m scared 150 times an episode and then gets lectured. Then has some strange dream. Just not a very interesting watch. Story was predictable. Some people might like the series if this is the first of this kind of ... anime they’ve seen im sure it’s more somber pacing and cerebral execution would stand out and might make it a fave but these types of series are a dime a dozen.

Reviewer’s Rating: 6

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Sep 8, 2024

congogrindcore

Not Recommended

I personally, and I believe most folks coming across this today, first discovered this show as a comparison to Madoka Magica, which happens to be one of my favourite anime. Looking a bit more upon it, I saw tags on anidb such as "Rotten World", "Deconstruction", "Tone Changes", "Gore", "Horror", and "Angst". That was enough to get me hooked.

Alas, this anime was not what I was advertised. Which would be fine if the plot was decent, but it's not.
If I had to keep this short and simple, I would say that Alien 9 has a lot of ideas that could've been great but execute them ... extremely awkwardly, resulting in a frustrating viewing experience and overall a pretty bad end product.

Ootani Yuri is a terrible protagonist and extremely annoying. All she does is cry, and not much else. I don't want to hear a single soul shit talk Ikari Shinji again. Now, I do understand that this is likely how an actual 10 year old would react when placed in this situation, and you do feel really bad for her, but she doesn't learn a single thing at the end of the story and doesn't change at all from the same character she was at the beginning. I don't think this is a bad idea in concept - humans are flawed and some don't learn from their mistakes. But I'm not sure if that's the angle Tomizawa Hitoshi was purposefully aiming for, and I am reluctant to believe that it is as it's unconfirmed and if I believe something based on my gut I might as well project literally anything into this show. And even if it was intentional, it didn't work and Yuri fucking sucks.

Secondly, too much goes unexplained, in a bad way. I love open-ended and confusing media, but certain basic concepts that should be set up to have a believable world are tossed aside, and I personally was unable to suspend my disbelief. Why can only these little girls fight the aliens? Who the fuck knows, it's certainly not something they bother to explain. Why are kids going to school a day after this big frog-whale thing landed on it? Do the parents give a single shit about their children, not to mention the parents of the girls in the Alien Party? The ending is also fucking atrocious. I can't describe it in any other way than it just "happening".
It might be a result of this show getting discontinued, and the manga might answer these questions, but judging the anime on its own, it ends up being almost schizophrenic (and not in a good way) and extremely unsatisfying. I wonder if this would've been any better if it had a regular, 12-13 episode runtime. No point in engaging in hypotheticals, though.

That being said, I did like certain aspects of the show. I enjoyed the contrast between the simple Tsukumizu-ish cutesy wide girls and the oddly realistic and detailed, almost biopunk design of the (big) aliens, especially the big eggplant-looking thing they look into. The OST was good and the animation surprisingly fluid. The one thing I can praise the plot for is that the ambiguity of the teachers and their intentions was pretty good, but I'm not sure if that was done on purpose.

I give this a not recommended because almost everything it tries to do ends up failing, and it's not even a so bad it's good show like High School DxD. But if you, like myself, is a weirdo who enjoys seeing anime girls undergoing psychological torture, and are a few drinks in, you might have a laugh.

Reviewer’s Rating: 4

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