Girl between Ginko and Aoyama is Ena Komiya, from Just Because!
EDIT: Wild guess, but I think the one behind and to the left of Ami is Kazumi Yoshida, from Shakugan no Shana. No one else I know fits the description, but I may be wrong. EDIT 2: Tagging it as Kazumi. Hard to tell 100%, but the combination of green uniform and trait connection seems solid enough to warrant it.
