I'm not sure I get it. That was a Marisa up to the fourth panel, and then it suddenly shifted types into an Alice. Some kind of viral method? The ending ...
^When black-ribbon alice jammed into alice in the fourth panel, the marisa was bumped away in time to avoid the jizz. BR Alice rapes the first alice to death, Marisa is (I think) all like "don't rape me!", then Alice puts Marisa's hat back on it and runs off to rejoin its group. Been a while since we had a respectable Alice.