For the right price, these professional troubleshooters can solve any problem, whether they're taking out the scum of the earth or destroying human-eating monsters!

The troubleshooters of Gokurakugai are open for business! In a run-down town without law and order, Alma and Tao accept work from clientele of all creeds and cultures, and they're always ready to dole out justice against human-devouring monsters that lurk in the shadows. They'll take on any case-as long as the price is right!

There's never a shortage of crime around town, and a young boy searching for his beastman friend is just another entry on a long list of missing person reports. However, Alma and Tao realize that they're the best chance at solving the case-and destroy the vicious monsters waiting around every street corner.