Um....{scratches head}...I'm not sure. I mean it's not bad, but the last 2.5 Volumes are really bad. Volume 4 seemed rushed, Volume 5 was also rushed with jumps, and Volume 6 is super jumped with that rushed feeling and a stupid ending i saw from a mile away. How did this even get made into an anime. Spoilers from here on.

~SPOILERS~

The first three volumes is why i'm "not sure". They are enjoyable and they hold my interest even though it's a bit jittery(the jump cuts again), A school that has sanctioned fights, and named them K-fights, and if you win you get better grades, which it doesn't at all. The K-fights were added this semester, and has no bearing on grades but is used to settle disputes. That's Volume one.

The next 2.5 volumes are backstory and nothing else it jumps forward in time to who knows when and then it goes back four months(?), why skip forward just to go back. Boyfriend get transferred, boo-hoo, s-o-l/high school drama. She loses heart and then needs someone/something to get her out of a rut. She does but then she and her "crew" get ass stomped and...nothing is mentioned about why this is done.

Volume 4 is where it jumps to the "end game" area does it seem like i skipped something nope that's the story goes straight to boss fight. There was no explanation as to what their doing here or why they want to do this, get back the tapes of their defeat, so what.

Volume 5, here's a few lieutenants and one of them(sephiroth looking bitch) who fights the main anti-hero(Shizuma) literally destroys his hand and we never see this guy before, we get one flashbacks after he is defeated. We get sporadic flashbacks on some training and more background sprinkled around here. Lots of plot holes and threads that lead to more questions than answers.

Volume 6, we "win" how when they left the main area, and went back to school leaving all the others there(big ass park) with some magical underground trolley. The the main girl beats the guy(anti-hero) even though he can control elements. She fought now one and went back to school unharmed and he has bone fractures and blood loss and loses(he actually says he lets her win-which is probably true) and then all the other appear out of nowhere wtf, then there's a jump to some dude in a suit saying that some scrub needs to take the fall. This manga keeps losing points as i write. They were [6/6.5/5] but it feel disgusted thinking about it.

TL:DR- Avoid it's ok at first then it gets worse and then confusing.