hakui_koyori_(school_uniform)
The 4th costume of hololive's Hakui Koyori.
In this costume, she wears a pink cardigan worn over a tucked in white shirt with a pink sailor collar, a pink high-waist pleated skirt, white frilled thighhighs and brown shoes.
For her official hairstyle in this costume, she has her long hair tied in a two side up held together with white hair ribbons.