Itou Hikari

Also known as: 伊藤光, 伊藤光(私モテ), 伊藤さん, いとこみ

Komiyama Kotomi's only other friend, she is a member of Haramaku's brass band. She plays a trumpet.

She, along with Kotomi, becomes one of Kuroki Tomoko's classmates in her third year.