Hakubanko has a white, rectangle-shaped face with a light yellow border. She has a frilly light yellow bangs, with two curls of pink hair down the sides similar to Pianitchi. She wears a dark pink business suit and red-violet stockings. She has pink cheeks and green eyes with white stars in the middle.
Hakuban means "whiteboard" (as opposed to Mr. Kokubantchi; blackboard), which is what Ms.Hakubanko appearance is based on. Ko is a suffix often used in Japanese girls' names.