Mizuki

Mizuki (瑞樹, Mizuki) is a classmate of Kotoha Isone.

Trivia

 * Early versions of Mizuki and Midoriko Amano can be seen in Rin Azuma's flashback in ~Hoshi no Umi~ Episode 1 attending the same school. This is likely an error as Mizuki attends a school outside of Sakurashinmachi, while yokai are required to stay within the city.