That initial lunge over the table made me weak in the knees. This art is so god damn good. The detail increases during tense moments, maximizing during the violent ones. Also, the reversal of lawful good-lookin-ass glasses girl turning into a shonen anime brawler is so fucking good.
I think the flash forward in the opening pages is good, though. It sets the tone and lets you know exactly what you're getting into. The whole chapter is spent in suspense wondering when it's going off the deep end, analyzing every little thing these girls do; is this what triggers it, was that important? It's a really clever and subtle writing trick telling the reader to pay attention. This ain't your mom's OL yuri manga.
10/10, instant fave, can't wait for next chapter.