The artist mentions on the source page the girl on the left is C2's Curry Kikan Kanban girl, so removed the Fubuki tag but couldn't find a replacement. Next to her is Colorado. Then a DEKAI Nagato, but I can't place the one on the right. It looks like Noshiro's K2 uniform, but the hair is wrong.
The artist mentions on the source page the girl on the left is C2's Curry Kikan Kanban girl, so removed the Fubuki tag but couldn't find a replacement.
So... re-ka-chan? I added her tag but the attire is off. Artist original?