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Diamond Head  
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[From ShoujoMagic]:

Ichihashi Nanao is an incredibly bright girl and the first to ever transfer into Mehabia Catholic School. The one God here, though, is the "Judicature Club," a school-sanctioned means of resolving student disputes. Its president and judge is the first person Nanao meets--Hanegi Raika, a handsome boy who looks like a girl. This highly selective club wants Nanao as a member, but while she may be unwilling to judge others, she may have no choice when she herself is judged.


Related Series

Associated Names
Блестящий ум
Bộ tứ kim cương
Daiamondo Heddo

Groups Scanlating

Latest Release(s)
v.5 c.Side Story by ShoujoMagic over 12 years ago
v.5 c.16 by ShoujoMagic over 12 years ago
v.5 c.15 by ShoujoMagic over 12 years ago
Search for all releases of this series

Status in Country of Origin
5 Volumes (Complete)
3 Volumes (Bunkoban)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 7.7 / 10.0 (262 votes)
Bayesian Average: 7.58 / 10.0
 21% (54 votes)
 18% (47 votes)
 19% (51 votes)
 21% (56 votes)
 6% (17 votes)
 6% (17 votes)
 2% (4 votes)
 2% (5 votes)
 1% (2 votes)
 3% (9 votes)

Last Updated
August 13th 2015, 7:44am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Betsucomi (Shogakukan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #620 increased(+181)
Monthly Pos #1211 increased(+561)
3 Month Pos #2366 increased(+1020)
6 Month Pos #4251 increased(+512)
Year Pos #5001 increased(+931)

List Stats
On 154 reading lists
On 341 wish lists
On 882 completed lists
On 43 unfinished lists
On 166 custom lists

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User Comments [ Order by time added ]

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Unique but...   
Rating: 8.0 / 10.0
by bloogal
December 30th, 2007, 2:44pm
This is something different- a shojo that doesnt entirely centre around romance. Here, the plot device is the 'judicature club.' First few volumes show us how the group works, how they solve their cases, in each case we're shown what 'justice' is. Later volumes give us background information on some of the characters, we see affection growing between them and the drama comes in. It's all very entertaining.
But a good story needs a good ending, and this is what it lacks. The ending is summed up in one chapter, leaving you unfulfilled. Usually, we all want the mangaka to give us a glimpse of what happens to the characters in the future, but here, the last four pages were probably not needed. Even though it ended, it didn't feel like it was complete. But it's a good read if you forget the lame ending.

... Last updated on February 5th, 2008, 5:56am
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Diamon Head   
Rating: 9.0 / 10.0
by Shily
December 5th, 2006, 5:31pm
Another great work of Mizushiro Setona. I was drawn inevitably by the story & the characters. It's thoughtful, romantic, kind of angsty, and also funny.
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Very unique   
Rating: N/A
by ikachew
December 14th, 2008, 5:24am
The story was so unique to me and I really enjoyed it. The explosive emotions really appealed to me but I feel like it ended too quickly. I wanted more.
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Went by faster than the wind   
Rating: 10.0 / 10.0
by dreamerondrugs
May 20th, 2008, 12:44am
i would rate this 12 out of 10 if i could...because it deserves that extra two points above all the other manga i have read so far. i'm still sitting here in awe...being a first year law student it was indeed very inspiring. For a short series of 5 volumes i have never seen such development, consistency and depth in the characters...The plot was carefully twisted and clever; each sentence written in the manga contributed to the story. Nothing about it was cliche, unoriginal or boring.
A masterpiece. besides nodame cantabile, its the first time ive seen a shoujo manga where it didn't need to center around romance to be amazing.
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Loved it   
Rating: 10.0 / 10.0
by Emiri-sama
September 12th, 2008, 12:17am
Honestly, it was unique. It wasn't your typical shoujo. All the characters seemed more realistic to me. Personally, I enjoyed the ending immensely. I thought it showed the great character development.
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amazing !   
Rating: N/A
by kamishiro
February 5th, 2008, 10:08pm
I loved , here we can see were Setona progressed to her actual style of drawing ! I have read olds and recent mangas of her , so here is where she changed to her actual drawing ! You can notice that ! From Dousei ai we notice the change to her drawing to the beginning of this manga drawing and from diamond we see the progess to her actual style ! The manga plot and characters are suprising , it was very good , it impressed me ! I jsut didn't like the fact that...

Spoiler (highlight to view)
...Setsu died.


I actually liked the endidng was good and realistic ! Like a lot people comments ... it's not a typical shoujo! It's much more !

[edit by mod]
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All is well~   
Rating: 9.0 / 10.0
by RaikaRai
October 20th, 2014, 4:32am
At the end of the day, I felt overly confused with whether Nanao liked Leica or Katsuma, dang the short two-page finale, if only the author can just kill that part off, everything would be so clear and perfectly ended to me. Reading this in the beginning, I started to wonder if I'm reading a shoujo manga, cause dang it doesn't feel shoujo at all, there ain't no sparkly cliched moments, it felt downright unappealing with the law cases. However, coming to the middle and towards the end, I was getting used to all these high school drama in court, oh and thankfully romance kicked in a little. I loved the story after that, when it was zoomed in more in these five people's lives, aside from the fact that I still can't wrap my head around who Nanao really likes, I think overall the art and story was well developed. This manga is not bad, guys.
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great beginning, fizzles out later, worth reading   
Rating: N/A
by Illegal Goddess
April 3rd, 2011, 3:03pm
The first volumes were really good even though I didn't like the art much. Still, the plot was intriguing, the idea was really cool, and the characters were pretty promising... but then it was as if the manga divided itself in two. In the first part intense things happened to interesting characters, and in the second part the heroine wandered around together with her boring romantic interest and the bored-but-hopeful readers.
I dunno why people here call the ending realistic, I'd say it was simply safe and predictable.
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dont read my comment....   
Rating: 10.0 / 10.0
by otakuness
June 9th, 2009, 7:16am
it was really first i thought that it would be somehow like OHSHC or beauty pop...but this one is really unique and it has its own wasnt ordinary...

the plot...welp...i really like it all the situations and also the minor characters!!! they were realistic...i havent encountered something like this before...

the characters...i like them!!! the heroine...shes very frank and also very passionate about what she doing...and the bishies theyre also pretty realistic...i mean they dont just fall for the main lead...i mean i really like leica-sama but it would be unrealistic and very cliched if he goes for nanao after the death of his girl....and also setsu and kiri!!! they are not like the others who just suddenly butts in because they also fell for her!! i like that very much!!!

the ending!! i love it!!! the part about made my heart ache...espeacially the prayer to felt like my heart is about to for nanao who didnt end up with leica- sama its okay cause its real and better off that way...
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Rating: N/A
by AvatarofBelle
June 8th, 2009, 5:01am
I found this to be one of Mizushiro's poorer works. I had higher expectations from reading her other stories such as X-Day. The character development was poor for most of the major characters. Who are these people? What are their backgrounds? Besides Raika and Setsu, no one has any kind of past. The case of the week aspect took time away for the reader to learn about the members of the Judiciary Club. In the end, I felt I knew more about the plaintiffs and defendants than Nanao, Katsuma or Kirihiko. What makes Nanao so special to be invited?

Spoiler (highlight to view)
For a shoujo, the romance portion was under developed. Why did Katsuma fall for Nanao? Though they are in the club together, there isn't much development between the two of them. Nanao choosing Katsuma at the end felt like a convenient thing for her rather than something heartfelt.

The judicial aspects were an interesting and unusual. Mizushiro-sensei provides realistic minor characters and I enjoyed the darker tone near the end of the series. I really liked the ending as well. Better than average but should have been better.
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