Miki Naoki is one of the main characters of the Gakkou Gurashi! series. She is a second year student of Megurigaoka High School. She eventually joins the School Life Club as the youngest member after being rescued during the members' outing to the mall. Miki is very polite and kind, as she uses the honorifics and calls her seniors "senpai". Though she is usually quiet, Miki is very caring and supportive, as she comforts her friends when they feel down, and gives them words of encouragement when they need it. Miki has had many appearances with "The Stand," a book by Stephen King, which is a post-apocalyptic horror/fantasy novel.

Spoiler

At first, Miki hates the way Kurumi and Yuuri accept Yuki's illusions, but later comes to understand their reasons and warms up to Yuki. Later considering her as one of her closest, if not, best friend.