Yoon Sooyeon / 윤수연

From Manhwa "My Younger Sister was a Genius / 동생이 천재였다"

Main Promnts: sooyeon, brown hair, red eyes

Clothes:

School: sooyeon, brown hair, red eyes, necktie, shirt, sweater vest, blue necktie, white shirt, vest, collared shirt

Home: sooyeon, brown hair, red eyes, white shirt, red shorts