The red headed girl is the nameless protagonist in the Girl's Side games.

Appropriately, they all have red hair, like the heroines in the official Tokimemo games.

Character tags added. Since the three girls are different characters, we have two options: Label them as protagonist_(tokimemo_gs#) or label GS and GS2 by their common fannames as I've noticed one other post here already does (daisy_(tokimeki_memorial)). I've opted for the former for the time being, seeing as how that seems to be the more common practice here on danbooru when no official name is given.

I can't tell if these are miniboys are just dolls.