Meiko was Miki's best friend since junior high. They were classmates in high school, and they always exchanged diaries to talk to each other.
Meiko was in love with Namura-sensei, who was also in love with her. But they kept it a secret because they were teacher-student. Then when the secret got discovered, Namura quit his job and went back to Hiroshima.
Meiko's voice is done by Yamazaki Wakana (»³ºêÏÂ²ÂÆà).