Finished
“Taiyo rediscovers forgotten childhood with three Okinawan sisters while learning diving and facing a mystical white whale.”
IO
イオ
7.31
5,070 rank · 6,649 readers · 59 favorites
Seinen
Harem
Drama
Mystery
Romance
Supernatural
Ecchi
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Based on your preference for character-driven stories with layered emotional arcs, this title's exploration of identity and belonging would deeply resonate. The pacing mirrors series you've rated highly, and its thematic depth aligns with your appreciation for nuanced storytelling...
However, the slow initial episodes might test your patience given your history of dropping shows that don't hook you early. The art style shift in the middle arc could also be a concern...
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Synopsis
Taiyo rediscovers forgotten childhood with three Okinawan sisters while learning diving and facing a mystical white whale.
Taiyo Nakabiru went to Okinawa on a trip in pursuit of beautiful girls and his wish to go diving. When trying to hit upon a girl, she surprises him by saying that he killed her mother. It appears that she and her two sisters know him, even though he does not remember ever going to Okinawa before. After convincing the three sisters, Nagisa, Shibuki and Mio Miyara, to let him help them out with their work and to let him learn diving from them, Taiyo's childhood with the sisters slowly comes back to him, and certain strange events involving a mystical white whale begins to haunt them. (Source: ANN)
What people say
Community consensus
Derived from 5 sampled reviews
8.0
/10
What 5 readers settled on.
100%
recommend
Score distribution
median 8
mode 8
σ 1.10
Agreement
Strong agreement
σ 1.10 · scores cluster tight
The polarity gap
—
Not enough recommend signal yet
Score over time
↓ 1.00
Running avg · Oct 2007 → Jul 2025
Snap verdicts
· shortest highly-rated reviews
- 8 “IO starts with the protagonist traveling to Okinawa on a school trip takes a detour after three girls who claims to be her sister. This manga is all in all a romance-mystery with addition of...”
- 8 “This was one of the most unique stories that I've had the privileged of witnessing in a long time. This was a cross between harem, mystery, Romance, and sport (if you consider scuba diving a sport...”
- 9 “IO basically starts of as a distinctive Harem, Romantic, Comedy, but as you go on you’ll discover that there is more to this manga, once the Supernatural, Mystery element surfaces. It follows the...”
Verbosity
Short · 0%
Medium · 60%
Long · 40%
Read Order & Related
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Cast
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A Manga Publication
- Format 55 × 10 ch × vol
- Total read 7h 20m approx
- Published Aug 1999 – Oct 2004
- Source Manga media type
- Ref. BS-M0804 catalog