Looks like poor Kogasa got the ever-living crap surprised out of her.

Also, Chen no longer has tails, she has eldritch manifestations of the demonic sadism that pervades every fiber of her being.

Is that a bomb around Kogasa's neck?

Krugger said:

Is that a bomb around Kogasa's neck?

Oh, so it is. Well, a timer anyway, and almost certainly a bomb. That explains a lot.

Flan's wings have started morphing as well. It looks like they're tying together with Chen's tails at the top.

Also, Enami Hakase seems to be changing character's outfits and designs a lot recently.

Wow this Keine

I would like to say, "Fix her", but ...