>>724950648
NTA but she's a vtuber from the company 'Hololive', which is under the parent company 'Cover'. They're the most popular and successful vtubing company in the entire vtubing sphere by a few powergaps and do world tours every year while doing things for games and anime.
The video you're responding to is Ina dancing to a song Mori Calliope (another hololive vtuber that has tons done tons of songs for anime and games) wrote for One Piece that aired as its OP.
Ina is also drawn by Kuroboshi (pic related) who dotes on her like a grandfather and also ended up modeling his own vtubing model to resemble her.