anime illustration, cool senior high school girl, confident older-sister vibe, long hime-cut hairstyle, black hair dyed deep crimson creating a two-tone effect, sharp cat-like eyes with black sclera and vivid red slit pupils, pale skin, slightly intimidating but attractive expression, faint smirk, resting her chin on the back of one hand while leaning against the classroom window frame, black t-shirt layered under an open white school shirt, loosely worn black tie, warm afternoon school atmosphere, upper body, stylish composition, highly detailed
안대
