Keiko Tsukamato

She is one of Rina's best friends and questions the existence of the male human. However, she loves animals and has a vast collection of stuffed animals and a couple of pets to show for it. Despite her boyish haircut, she tends to have a very feminine personality—doing things that normal girls her age would consider fun. However, she is a bit of a tomboy, since she likes playing sports more than other girls.