Also known as: 小宮山琴美, こみちゃん, こみもこ, いとこみ
A schoolmate of Kuroki Tomoko, she went to the same middle school that Tomoko and Naruse Yuu studied in. She and Tomoko generally don't get along much (because they're so alike), but they tolerate each other for Yuu.
She has a massive crush on Kuroki Tomoki. Itou Hikari is her closest friend in school.