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From Anime Waves:
Nakabaru Taiyo came to Okinawa in the pursuit of beautiful ladies and the blue sea... But while trying to hit on a cute girl, she told him that her mother hated him... And then a wonderful story of scuba diving, beautiful women and adventure begins!


Related Series

Associated Names

Groups Scanlating

Latest Release(s)
v.10 c.55 (end) by Anime Waves (2895d ago)
v.10 c.54 by Anime Waves (3037d ago)
v.10 c.53 by Anime Waves (3115d ago)
Search for all releases of this series

Status in Country of Origin
10 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews
IO by Master_M2K

2 topics, 20 posts
Click here to view the forum

User Rating
Average: 7.8 / 10.0 (486 votes)
Bayesian Average: 7.73 / 10.0
 17% (84 votes)
 15% (73 votes)
 29% (141 votes)
 19% (91 votes)
 9% (44 votes)
 5% (24 votes)
 2% (11 votes)
 2% (9 votes)
 0% (2 votes)
 1% (7 votes)

Last Updated
November 27th 2014, 5:52pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Young Magazine (Kodansha)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #927 increased(+229)
Monthly Pos #1932 increased(+115)
3 Month Pos #2482 increased(+494)
6 Month Pos #3211 decreased(-200)

List Stats
On 515 reading lists
On 534 wish lists
On 1486 completed lists
On 72 unfinished lists
On 159 custom lists

Note: You must be logged in to update information on this page.

Forum Posts
[IO] The Ending 1147 days, 3 hours, 59 minutes ago
I just finished IO, and the ending left me very confused!!! 2290 days, 19 hours, 26 minutes ago

Click to view the forum

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User Comments [ Order by time added ]

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Rating: N/A
by Mamsmilk
June 28th, 2008, 8:17am
Ok, it was not that bad.
The plot had some twists that
weren't very real and the ending was
pretty hastily done. In fact, I have no
idea what happened in the end.
The text was there and the art was there,
but it simply resonated void to me.
Perhaps I read it too fast or it just made
no sense. Also, a bit too much drama
for me... In short, I didn't like the ending, but
it was somewhat okay in general.
Now I feel empty... I am such a pansy. .___.
I should remind myself to not read any harem
stuff since they always make me feel uneasy in
the end. You know that the guy always picks the
wrong girl etc.
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Rating: 8.0 / 10.0
by jackblack901
November 13th, 2009, 3:07am
I agree with most of ppl comment here, the story did not reach it potential. It build up quite a deep and interesting mystery, but somehow it was not solved well in the end and leave me unsatisfied, i don mean it really bad, it's quite a lot of details in the couple of last chapters, it's just lack of something.
About the harem twist, it's really light in the beginning and most of the first half of story but then it suddenly went out blue and even become a bit creepy and complex. And it does not solved well neither.

Anyway, it was quite good read, it's worth my 6 hours reading at least. I think the biggest problem it deals with a lot of genres: drama, mystery, harem, rommance, ecchi, supernatural also a bit tragic and comedy... all of them became good part of the story but none of them can go above average.
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Rating: 10.0 / 10.0
by imhereformanga
January 19th, 2007, 8:28pm
It gets interesting and real romance starts at around volume 7. It's really good
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Rating: 9.0 / 10.0
by traziemykel
December 19th, 2006, 9:12pm
awsome... really great.. way better than his previous work
a must read. supernatural and romance at the same time.. u dont see that everyday. ^^
give it a try..
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Excellent read!   
Rating: 9.0 / 10.0
by qwerty4
November 25th, 2006, 5:13pm
I am throughly enjoying my read of IO the story is well done and the development is well paced too the girls are drawn in a manner which befits the title! hehe
good read! although its ending soon!!!! and it aint coming to me quick enough!!
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Plot holes and flaws but keeps you reading   
Rating: 6.0 / 10.0
by Druid
February 7th, 2010, 12:15pm
Most people have already said what I would say so I'll keep this short. What I dislike most about this manga is how some of the characters do some absolutely horrible things and yet the main characters seem to sympathize with them. I won't spoil the story with examples here (read my post in the forum topic "IO The Ending" for a specific example) but if you read through it all then really think back on it, these actions are really unforgiveable.

That aside, I did read this from start to finish and the truly bad mangas are the ones that can't keep me interested so I can't give this a truly bad rating. Just know that there are some characters you're going to want to at best beat upside the head (Taiyo for one), at worst (I know she dies) throw in a jail cell for the rest of their life.
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Rating: 7.0 / 10.0
by nail80
May 12th, 2009, 4:42am
This series didn't leave me satisfied.

The plot was interesting, the twists were nice, i enjoyed the drama and i learned a bit about diving, but...
The last third of the story just wasn't good enough for me, that could have been better, way better, especially because i wanted it to tie everything up, and it didn't, that and the fact that i wanted some of the characters to have different reactions here and there. Tayo's affair was also something that could have been removed, especially the drama that surrounded it, i just didn't buy it, it put me off.
Overall it is good, but i just can't forget about things that really upset me.
And who here is really pissed of about Tayo's father? I know i am.
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Rating: 9.0 / 10.0
by flapple
February 21st, 2008, 6:26pm
this manga got me hooked around Vol 3 so if u dont like the first vol just keep reading =) Also, the ending was kinda weird. it was really confusing, and it seemed like the author rushed through it. other than the ending and beginning, this was a really good mysterious manga

i recommend it
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Rating: 8.0 / 10.0
by apples88
June 22nd, 2007, 8:41pm
this is a really good manga i didnt expect it to be this good. sort of like ichigo 100% but with some mysterious magic sort of thing at work. also did someone say this is discontinued?? i hope not id be very disappointed =(. and if anyone knows of any group that continued this and is active plz tell
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Awsome but need a Dam ending soon   
Rating: 10.0 / 10.0
by Agroar
December 4th, 2006, 9:04am
It was awsome to read this manga, love the characters and the hole story but since i can't find the ending anywere i'm about to kill myself(kidding ofc), i would like to know the ending befour i turn old and gray lol xD
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