morswa
もるすぁ (Morswa, Morsaa, Morsoa or Morushula)
Fictional depiction of Morswa, a NicoNico user who created two artist self-insert video series, "もるすぁが幻想入り (Morswa came over to Gensokyo)".
For art drawn by him, use his current nickname: Asunaro (morswa).
He was originally an odd, shaven-bald man in the videos. But, he was accidentally genderswapped by Eirin's medicine in the Episode 6.
Pixiv has some images of his genderswapped fictional depiction.
Note that his name has no relation to this Furby meme: Danbooru post #751203.