Rico Amamiya  

, 雨宮 莉子

A high school student who takes photography classes with Utsumi and is currently in her third year of junior high. During a conversation between Utsumi and Rico about their families, Utsumi mentioned that he has always wished for an older sibling, so Rico began addressing him as "younger brother" (in place of kouhai) even though he is two years older than she is.