I think these are all Japanese occupation but I have to research them still. I always enjoy stuff like this.
They're all Manchukuo coins. Not occupied by Japan but a nominally independent country which in actuality was under Japanese control. 5 fen and 1 jiao coins.
Yeah, I just finished IDing them all. I think I already have a few but I still enjoy finding things like this that are from a particular time in history like this.