plasma-chan (kancolle)
A Kantai Collection meme character. A fanmade variation of Inazuma that became meme enough to become a trend among Pixiv artists. She in originated in post #1917287 by Sukima.
She appears generally identical to Inazuma, but often a chibi figure (or deformed in a muscle-bound manner), and classically has a :<> face with eyes that are large solid black circles, upturned eyebrows, shading on her face, and the oddly-shaped mouth twisted into a trolling smirk (see post #1680938). Frequently, she can be made to appear thuggish instead of smirking. Plasma-chan is also a highly violent "dark-side" version of Inazuma, usually threatening people (or eggplants) with weapons or martial arts (see post #1726517). Alternately, simply behaving in a manner deliberately the opposite of the "pure and innocent" normal Inazuma (see post #1703511).
Plasma-chan was, in the Twitter images that originated her meme, violently opposed to an artist named Nasu (Japanese for "eggplant") and featured the solid circle eyes and :<> face as her salient traits in the series. Some references to Plasma-chan just have her head and a "nasu" speech bubble.
Inazuma's name means "lightning" in Japanese, so she becomes "plasma" as her dark side.
Inazuma's catchphrase "nanodesu" (なのです) may be just slightly altered into "な゛の゛て゛す! (nano-DEATH!)" instead (alternately, "なの-DEATH!").