To Heart 2: Michiru Yamada

 Michiru is one of Konomi's friends from junior high who now goes to a private school.  She has a tendency to be soft spoken.

Chihayafuru, Season 3: Michiru Horikawa

 Michiru is a classmate and friend of Chihaya as well as a member of the Mizuawa Field Trip Committee.  During the class trip she helps Chihaya stop worrying about the qualifier tournament and enjoy her trip.