Illustration - Terano Totobami Kakegurui (Patreon)

Different versions and a sketch of her and her sister Yumi Totobami

Terano Totobami (等々喰 定楽乃)

Terano is the de facto leader of the family representatives who attempt to overthrow Kirari Momobami. 

Terano has pale complexion, short black hair (dark brown hair in the anime) that has a clean cut at the bottom with sectioned bangs and dark brown eyes.

She wears the standard female Hyakkaou Private Academy-issued uniform. Since she is handicapped for an unknown reason and can't walk on her own, Terano is always seen in a wheelchair where she is being pushed by Yumi, and her legs are covered by a blue blanket.

I took the freedom to add a reason (or two)