Hakui Koyori from Hololive holding test tubes HD Wallpaper

A pink-haired anime girl with cat ears, identified as Hakui Koyori, holds two test tubes, one with pink liquid and the other with blue. She wears a white lab coat with pink accents and has a small pink fox-like creature peeking out from her sleeve. In the background, there are two translucent blue screens displaying scientific diagrams.