who is she and her social media or full video? gallery?

Her name is うしじまいい肉 Ushijima Iniku (I'm not sure if this translation is accurate), a famous cosplayer in Japan.
Here are some photos of her
https://cosplay-toriko.com/post/100119/
Her wiki:
https://ja.wikipedia.org/wiki/%E3%81%86%E3%81%97%E3%81%98%E3%81%BE%E3%81%84
%E3%81%84%E8%82%89
X:
https://x.com/prdtrt_2020
Ins:
https://www.instagram.com/Fushijima1129