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Jozin
Since: Dec, 1969
Asuyuka
Since: Jan, 2001
artiksilver
Since: Dec, 1969
Jozin
Since: Dec, 1969
Raisin56
Since: May, 2013
Jozin
Since: Dec, 1969
Jozin
Since: Dec, 1969
Raisin56
Since: May, 2013
2012-02-19 17:30:28
Satoshi Shiki's Kamikaze? Or X Blade, though I don't think that one has been licensed and it seems too new.
silvphoenix
Since: Feb, 2012
Pyrite
Since: Jan, 2001
2012-02-19 19:18:37
Not sure about the cover, and I can't remember when the massacre occurs, but what about Tenjho Tenge?
Edited by Pyrite Not a substitute for a formal medical consultation.
Jozin
Since: Dec, 1969

Okay, this is gonna be a tough one, because of how little detail I can remember about it. It was a manga that was released here in the States a few years ago. Its first volume was considerably thicker than the average manga volume, and instead of having the standard 16+ readers only warning that most manga for older audiences have, it had what equated to an 'M' rating (in fact, I think M was used in the actual rating). Either the front or the back cover had a morose-looking older schoolgirl with long dark hair standing up and facing the reader, holding a sheathed katana in a vertical position (though the details of this aren't 100% clear in my mind, so if you see something that doesn't fit that exact criteria, still let me know). One thing I definitely remember about the actual content of the manga was that the first volume had a high school massacre, where seemingly one fair-haired dude (though he may have had help, it's difficult to recall) brutally slaughters most—if not all— of the students and teachers in the school at the time. And I definitely remember supernatural powers being involved in the story.
Again, sorry for the vagueness of this all.
Edited by Jozin