Aiko Midorikawa is a cheerful high school girl with long brown hair tied into a neat ponytail with a large white bow. She has bright green anime-style eyes and a friendly, slightly mischievous expression.
She wears a light-brown school blazer over a crisp white collared shirt, with a red necktie and a blue pleated skirt. Her outfit is completed with long white socks and simple black school shoes.
Aiko has one very unusual and embarrassing quirk: she sometimes farts green smoke clouds.