Kiseijū: Sei no Kakuritsu

Kiseijuu Anime Poster

Parasyte -the maxim- poster

English Parasyte -the maxim-
Japanese 寄生獣 セイの格率
Rōmaji Kiseijuu Sei no Kakuritsu
Animation Work Madhouse
Original Run October 8th, 2014 - March 25th, 2015 (Japan)
October 3rd, 2015 - April 10th, 2016 (United States)
Episodes 24
Genre Action / Horror / Sci-fi / Seinen

Kiseijū: Sei no Kakuritsu (寄生獣 セイの格率, Parasyte -the maxim-) is the anime adaptation of Hitoshi Iwaaki's science-fiction horror manga, Kiseijuu.


17-year-old Shinichi Izumi lives with his parents in a quiet neighborhood in Tokyo. One night, worm-like aliens called Parasites invade Earth, and they take over humans by entering through their ears or noses to get to their brains. One Parasite tries to crawl into Shinichi's ear while he is sleeping, but the teenager is wearing headphones so the Parasite enters his body through his arm instead! The Parasite named Migi ends up taking over Shinichi's right hand.

Because Shinichi was able to prevent Migi from traveling further up into his brain, both of them are able retain their separate intellect and personality. They end up fighting other Parasites who attack them after realizing that Shinichi's human brain is still intact. These other Parasites devour humans as food, and Shinichi ends up fighting them with Migi's help. As the two of them encounter more Parasites, they end up forming a strong bond as they work together to survive.


  • Original Work: Iwaaki Hitoshi
  • Direction: Shimizu Ken`ichi
  • Series Composition: Yonemura Shouji
  • Character Design: Hiramatsu Tadashi
  • Chief Animation Direction: Komaru Toshiyuki
  • Art Direction: Akai Fumihisa
  • Colour Design: Hashimoto Satoshi
  • Photographic Direction: Fushihara Akane
  • CG Direction: Fukushi Naoya
  • Editing: Kimura Kashiko
  • Music: Ken Arai
  • Sound Direction: Yamada Chiaki
  • Animation Work: Madhouse
  • Production: NTV, VAP, Forecast Communications

Voice Cast

Japanese Voice Cast

English Voice Cast


# Title Air Date English Air Date
1 The Metamorphosis (変身, Henshin) October 8th, 2014 October 3rd, 2015
2 The Devil in the Flesh (肉体の悪魔, Nikutai no Akuma) October 15th, 2014 October 10th, 2015
3 Symposium (饗宴, Kyōen) October 22nd, 2014 October 17th, 2015
4 Tangled Hair (みだれ髪, Midaregami) October 29th, 2014 October 24th, 2015
5 The Stranger (異邦人, Ihōjin) November 5th, 2014 November 7th, 2015
6 The Sun Also Rises (日はまた昇る, Hi wa Mata Noboru) November 12th, 2014 November 14th, 2015
7 A Dark Night's Passing (暗夜行路, An'ya Kōro) November 19th, 2014 November 21st, 2015
8 Freezing Point (氷点, Hyōten) November 26th, 2014 December 8th, 2015
9 Beyond Good and Evil (善悪の彼岸, Zen'aku no Higan) November 26th, 2014 December 12th, 2015
10 What Mad Universe (発狂した宇宙, Hakkyō-shita Uchū) December 3rd, 2014 January 3rd, 2016
11 The Blue Bird (青い鳥, Aoi Tori) December 10th, 2014 January 10th, 2016
12 Heart (こころ, Kokoro) December 24th, 2014 January 17th, 2016
13 Hello Sadness (悲しみよこんにちは, Kanashimi yo Konnichi wa) January 7th, 2015 January 24th, 2015
14 The Selfish Gene (利己的な遺伝子, Rikoteki na Idenshi) January 14th, 2015 January 31st, 2016
15 Something Wicked This Way Comes (何かが道をやって来る, Nanika ga Michi o Yattekuru) January 21st, 2015 February 7th, 2016
16 Happy Family (幸福な家庭, Kōfuku na Katei) January 28th, 2015 February 14th, 2016
17 The Adventure of the Dying Detective (瀕死の探偵, Hinshi no Tantei) February 4th, 2015 February 21st, 2016
18 More Than Human (人間以上, Ningen Ijō) February 11th, 2015 February 28th, 2016
19 In Cold Blood (冷血, Reiketsu) February 18th, 2015 March 6th, 2016
20 Crime and Punishment (罪と罰, Tsumi to Batsu) February 25th, 2015 March 13th, 2016
21 Sex and Spirit (性と聖, Sei to Kiyoshi) March 4th, 2015 March 20th, 2016
22 Quiescence and Awakening (休止と目覚め, Kyūshi to Mezame) March 11th, 2015 March 27th, 2016
23 Life and Oath (生命と誓い, Seimei to Chikai) March 18th, 2015 April 3rd, 2016
24 Parasyte (寄生獣, Kiseijuu) March 25th, 2015 April 10th, 2016


Cocept art

Original concept art

Opening, Ending & Original Soundtrack

  • All Original Soundtrack/OST was released on December 24th, 2014.
  • Opening Theme: "Let Me Hear" by Fear, and Loathing in Las Vegas. Released in January 7th, 2015.
  • Ending Theme: "It's The Right Time" by Miura Daichi. Released in December 3rd, 2014.

Other Videos


  • All the episode titles are references to literary works. Each individual episode's article has trivia that will state what work the title is from.
  • When the anime was undergoing promotion before release, a manga series of collaborative oneshots named Neo Parasyte based on the Parasyte manga was published in Monthly Afternoon Magazine with authors such as Fairy Tail's Hiro Mashima, Peacemaker's Ryoji Minagawa and Prison School's Akira Hiramoto producing chapters.


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