She is Yoshinori's childhood friend and the girl next door. Currently a third-year student in junior high. Ambitious and works hard at everything she does-- school, soccer, relationships... has feelings for Yoshinori and wishes more than anything that she was older, closer to his age. (Source: Tokyopop Volume 7)
Yamakawa Michiko is the best friend of Yoshika and is called "Micchan". The two go to the same school and during Yoshika occasionally with their own kind of brings into difficulties. Michiko is rather the shy, reserved type. Her grandfather worked in agriculture, and the two like to go once before with his tractor.