Kiseijuu: Sei no Kakuritsu

All of a sudden, they arrived: parasitic aliens that descended upon Earth and quickly infiltrated humanity by burrowing into the brains of vulnerable targets. These insatiable beings acquire full control of their host and are able to morph into a variety of forms in order to feed on unsuspecting prey.

Sixteen-year-old high school student Shinichi Izumi falls victim to one of these parasites, but it fails to take over his brain, ending up in his right hand instead. Unable to relocate, the parasite, now named Migi, has no choice but to rely on Shinichi in order to stay alive. Thus, the pair is forced into an uneasy coexistence and must defend themselves from hostile parasites that hope to eradicate this new threat to their species.

[Written by MAL Rewrite]

Izumi, Shinichi Main

Shimazaki, Nobunaga Japanese

Migi Main

Hirano, Aya Japanese

Tamiya, Ryouko Supporting

Tanaka, Atsuko Japanese

Kimishima, Kana Supporting

Sawashiro, Miyuki Japanese

Murano, Satomi Supporting

Hanazawa, Kana Japanese

Joe Supporting

Murase, Ayumu Japanese

Gotou Supporting

Inoue, Kazuhiko Japanese

Uragami Supporting

Yoshino, Hiroyuki Japanese

Hirokawa, Takeshi Supporting

Mizushima, Yuu Japanese

Uda, Mamoru Supporting

Suzuki, Takuma Japanese

Nakatani, Toshio Producer

Ooshima, Yuka Producer

Shioiri, Souta Producer

Inage, Hiroyuki Producer

Reviews

Apr 6, 2025

myval2012

Recommended

The beginning was strong. The ending was over 3 episodes long for no reason and was a big dissapointment for such a great series (I'm not a big fan of episode long battles and inner monologes, imo they could have made the series 22 episode with the ending episode 30 minutes long and it would be much better). Also the love story was heartwarming, but a bit underdeveloped.

Anyway this concludes my review of the show to keep it as spoiler free as possible now I'm just wondering how long I have to write before I meat the required amount of words

Reviewer’s Rating: 8

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Mar 30, 2025

RoseDali

Mixed Feelings

I felt weird coming to watch this after watching the korean drama adaptation, but it gave me an idea of what to expect, at least when it comes to the parasytes and how they were introduced, and also the concept of the failed parasyte that fails to fulfill its objective, and thus we get half parasyte/half human.

The anime had a strong start, as the morals were questioned with every episode. but the ending felt lost, like in the end, you're just free to think whatever you want to think of these parasites. I liked its intense atmosphere, the conversations with migi, but disliked some ... of the unexplained uncharacteristic actions towards the end. I didn't read the manga yet, so it might have shed some light on things I couldn't understand, but it reminded me a lot of tokyo ghoul, in regards to the question, who is human and who is a monster?

worth watching, but maybe it won't be on everyon'e favorites lists.

Reviewer’s Rating: 8

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Nov 23, 2024

Ouimerci

Not Recommended

Funny

TLDR: overrated and underwhelming anime. It's not terrible per se, it's just extremely uninteresting.

Sadly this anime is very overrated, to a point I don't get why people were hyped at all.
The best description for me is "underwhelming". Nothing is actually interesting past the first 2 episodes. Most fights in the second half involve characters you just met and have not attachment to, whatsoever.

The most tensed episode is the last one... And it's just extra, unnecessary drama that brings nothing new to the story.

The rest is either predictable, unnecessary or underwhelming. When a major death happens, the animation and direction makes it look like a slice ... of life anime.
The fights themselves are the best part, but are still unoriginal.

Reviewer’s Rating: 2

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