higuchi kaede (adult)
The alternate aged up (22 year-old) form and 11th official alternate costume of Nijisanji's Higuchi Kaede.
In her adult form, she sports a boyish alternate hairstyle and wears a cropped purple jacket, white shirt, black belt, high-waist skirt, black leather shoes, and multiple rings.
Official art
This tag implicates higuchi_kaede (learn more).