Here is picture number 5 in the mini series. on their way to school the three cubs came across 2 of Mr.C.Ash's henchmen named Piggy-banks robbing a store in order to make that store go out in business so that Mr.C could buy up that plot of land in order to enlarge his business empire. it seems like this his a time for the three magical girl(y-boys) to transform themselves and beat these villains.
( villains preying on the weak and monsters attacking the city is common in Gaki's world hence why the city formed the three factions of magical girly-boys )