Transported to another world, be by manifestations of nature, getting kidnapped by gods & mages through summoning, reincarnation trafficking by a crime syndicate or soul unwillingly being snatched to be reborn in another world. These are events that will cause great chaos that can bring grievous implications.
The Realm, Passage & Gate Foundation, better known as The RPG Foundation are such organisation tasked to deal with such disasters. Working with allies & associates from every part of the universe, their duty is to save lives & prevent tragedy from spiraling out of control.