I can honestly say I don't understand this meme. I don't understand what it's trying to say.

I know what the Demon Core is (there was a similar, lesser known accident in my country, but it only killed the operator) and I'm all for bleak humor, but...

... I don't understand this one. What's with the animé girls and the cutesy style? What is this mocking exactly?

I'm not offended by it or anything, I just don't get it. Seems completely random as well as obscure.