A perky high school freshman who is in the Drama Club. She is considered very pretty and cute by girls in her year and upperclassmen. Narumi tends to daydream and speak of meeting a wonderful person who will change her life. She ends up crossing paths with her sempai Tachibana who accidentally takes her first kiss while they are rehearsing for a play. Narumi attends Sakurakai Girls' School. She is a classmate and a friend of Kobayashi Nana. She eventually starts dating Tachibana who she comes to care for deeply, and she seems a little possessive about the older, very popular girl.