Name: Kagawa, Rika (香川リカ)
Relationship Status: Single
Origin: Otaku no Musume-san
Kagawa Rika is a classmate and friend of Higan-sou resident Arisaka Haruka. She has a younger sister in elementary school named Riko. Rika has a crush on an older man, Nitta Chihiro (who also lives in Higan-sou), though he is not interested in her. A teenager, Rika believes that she is too young for him, when in fact the truth is the complete opposite.
Rika is not an extreme fujoshi, but she still got thrilled at the idea of Nichi and Kouta in a relationship, and was the one who encouraged Haruka to make a drawing of them in the first place.