Towa Kiseki

Her Triangle shaped part of her attire (that is intended to resemble the symbol for the Play Button) looks similar to the parts of Red Frame, one the main robots of the series Gundam Astray, which originated lots of memes implying she is the an anthropomorphization of the giant robot. She denies that in a hilarious exchange of tweets with her fans but then she embraced the resemblance. The above caused her to gain meme status and allowed her to see the largest jump in followers ever seen by a VTuber, from a few hundred on 04 March to 80000 on 06 March.