Two Worlds exists, yet they are separated from each other by magical means. One World is one Stuck in a Medieval Era where magic and mystery is as normal as breathing. Its a very old school living with old beliefs and where nearly all living beings are magical.
The Other World, is the 'Human realm' a normal World where magic is but fantasy and not much exciting exist beyond what humans have created up to 2015.
Your Character (YC) is a regular human living in the 'regular' World, where you in general attend your normal Daily Life when something rather unique and special happen... Your invited to a Job, it dosen't require much skill and are certainly more well paid than anything you can Think of. In fact it has an unnatural but tempting opening in its offer for compensation for basic services such as Cooking 'and cleaning. The Job is in general as a Assistant to a person who simply can't take care of all its Daily duties. And in return for these services you can get pretty much anything you wish for as compensation.
You fall for the offer... And sign the Contract, next you know your in a magical World far different from your own.
My character (MC) Is a Magical humanoid, who live in a medieval World where magic and dragons is as obvious as the need of air for breathing. And MC live in a society that Witches and Wizards has built for themselves whom haven't developed beyond A medieval era due to everyone taken the ability to solve just about any problem with magic rather than with 'Tools' humans use. They fully know of the existance of the 'Other' World but usually don't bother it in any specific way... but now it happens that MC is very busy with his or her normal Life and thus have the need for a Servant, he or she cannot simply attend the magical school where MC go without a Servant or Slave.
The Problem at hand for MC is that he or she in general know nothing about the human World, and only bring a human to their own World on unfair terms simply because he or she need one. And as MC is quite used to do just about anything with magic and having Little skills beyond that fact... he or she is pretty much a screw up when it comes to anything else.
The Summerize the character setting, and the General plot is aimed for a Fun rather open experience.... with many Fun twist and hopefully mature such.
Where MC Thinks that he or she is obviously much higher and mightier than a regular human... but fails to understand how clever humans can be when pushed...