I added the World War II tag as it was in the list of translated tags, but can someone confirm that those are indeed Finnish uniforms from that era?

BrokenEagle98 said:

I added the World War II tag as it was in the list of translated tags, but can someone confirm that those are indeed Finnish uniforms from that era?

They are. Aki's coller insignia is for an Armour Sergeant while Mika has officer pips on her jacket collar.