Worldbuilding fact–the currency in Zokusho is “points.”  Anybody who says otherwise (*coughissueonecough*) is a filthy liar.

In all seriousness though, ten points equals one credit, kind of like ten gold equals one platinum in D&D/Pathfinder.

I was going to work it into the script, but it felt clunky for them to specify their currency, so I decided to just explain it here.