Around 150 years ago, methods of cheaply mass producing some, but by no means all, magic items were discovered, beginning a complete revolution in the way people live. Magical fertilizers have massively increased crop yields, and magical methods of preservation have kept those crops from rotting. Easy means of mass communication allow people to talk to whoever they want, whenever they want, making communities less isolated and make a ruler's job much easier. Combined with the invention of magical means of mass transport cheap enough for most people to be able to afford using them, this has brought about a complete and total revolution in the way people live.
At the moment, around 70% of individuals live in cities or large towns instead of villages, hamlets, or small towns. Although poverty still exists, most people are pretty well off compared to before the mass production of magic. People generally can afford to eat what they want year round thanks to efficient agriculture and preservation, and magical research has allowed the medical field to discover effective non-magical medications, ways to combat infection, and study of the humanoid form has allowed a force of competent surgeons to exist. Most individuals work in service, manufacturing, or entertainment industries, not agriculture. A professional standing army and navy have made the militia little more than a reserve organization for emergencies, and the existence of effective professional police forces and justice system have done much to combat crime.
Adventuring is pretty much dead in this world. The police do not like having adventurers running around causing trouble, and they have the ability to enforce bans on vigilantism. The PCs of this campaign instead take on the role of these police, specifically the Ministry of Magic's Ranger Service, an agency devoted to dealing with the dangerous monsters that still sometimes pose threats to innocent life and high powered spellcasters who use their powers to perform illegal deeds.
