Hekikai no AiON
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Hekikai no AiON

Alternative Titles

Japanese: 碧海のAiON
English: AiON
More titles


Type: Manga
Volumes: 11
Chapters: 44
Status: Finished
Published: Jul 9, 2008 to Jul 9, 2012
Genres: Fantasy Fantasy, Mystery Mystery, Romance Romance
Themes: Mythology Mythology, School School
Demographic: Shounen Shounen
Serialization: Dragon Age
Authors: Kagesaki, Yuna (Story & Art)


Score: 7.361 (scored by 30873,087 users)
1 indicates a weighted score.
Ranked: #38082
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #2162
Members: 7,746
Favorites: 114

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Ranked #3808Popularity #2162Members 7,746
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Chapters: /44
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After both his parents died in an accident, Tsugawa Tatsuya is now left with millions of heritage he can't use. In the weeks after, he's still mourning and thinking about his father's last words, "Tsugawa family's man must be a man of great vessel". But Tatsuya is not confident he can fulfill his father's last wish.

One day, he met Miyazaki Seine, a strange girl who seems to enjoy being bullied. Tatsuya believes he can help her even though his friends only see her as a masochist pervert, and Seine herself told him to mind his own business.

Seine hunts creatures of the sea, a kind of parasitic bug that controls humans and influences them to do hateful things. She possesses an immortal body and a beast called AiON that's used to lure and devour the bugs from inside the human host. She and the bugs naturally have an impulse to kill each other on contact.

Even so, Tatsuya still can't just leave her alone, he wants to help her.


Hekikai no AiON was published in English as AiON by Tokyopop with 3 volumes released from December 28, 2010 to June 29, 2011 before the publisher went defunct. VIZ Media digitally rereleased 2 of the Tokyopop volumes under the VIZ Select imprint from June 30, 2015 to July 28, 2015.

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More reviewsReviews

Aug 23, 2022
To start off, this short manga surprised me. Reading the other reviews made me feel like I was going to get a boring, well-drawn manga based on romance with mermaids and magic thrown in. In short, this is not what I received from this manga nor do I think it will be what you receive.

As a short summary and review, the read was very enjoyable and the manga itself was really good. Some of the best things this manga brought forward were the characters and their interactions plus a few really big plot twists/reveals. Aside from that, the art for the manga was incredible and ...

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Poll: Hekikai no AiON Chapter 44 Discussion
Xeo - Dec 3, 2014
10 replies by eliterodriguez »»
Jun 12, 2017 5:39 PM
Poll: Hekikai no AiON Chapter 12 Discussion
RKC - Nov 17, 2009
3 replies by aku27 »»
Nov 10, 2014 5:05 AM
Poll: Hekikai no AiON Chapter 3 Discussion
RKC - Nov 9, 2009
3 replies by aku27 »»
Nov 9, 2014 1:10 AM
Poll: Hekikai no AiON Chapter 43 Discussion
Stark700 - Oct 14, 2014
3 replies by Valaskjalf »»
Oct 28, 2014 2:47 PM
Poll: Hekikai no AiON Chapter 10 Discussion
RKC - Nov 15, 2009
4 replies by Valaskjalf »»
Oct 18, 2014 9:26 PM