For as long as Erika could remember she's been alone. Having no blood relatives to speak of, she was eventually found and raised by a small time gang of thieves in the town of Edenborough. Even through some dark hours, Erika truly believed in the people who raised her.
Which is why when they asked her to help them sneak into the manor of a wealthy older gentleman, she didn't hesitate to agree. But when second thoughts and complications creep in, things go from bad to worse.
Abandoned near the end of the job, Erika is betrayed and cursed by an ancient demon relic that triggers a process that happens to mages when their magic goes haywire called demonification. Thinking all is lost, Erika is nearly consumed by this process until she's rescued by a mysterious mage called Kai Slayer.
Now saved, Erika is whisked away to a mysterious place called the Mage's Tower, where she's to learn how to control her powers and understand this secretive society she's been ushered in. All while unraveling the mystery of who she is and what her demonic heritage means to the world at large.
The main character, Erika can be very reticent quiet young girl who's struggling with her newfound demonic heritage. Is in the Advanced Mage classes.
A precocious eight year old with unfathomable power, it's the Mage Tower's job to ensure it's never unleashed. She's a fellow Advanced Mage alongside Erika.
A mysterious mage who seems to understand Erika's demonic heritage. Has a rare teleportation ability, and so he's the one who goes around rescuing young mages. Is the teacher for the Advanced Mage class.
A thief and low level mage, he hides his true intentions behind a wink and a smile. Is incredibly obsessive and cold, as revealed when he betrayed Erika.
Isabelle's dad, he snuck into the Mage Tower when he assumed she had been kidnapped for ransom. Upon clearing up the confusion, he ends up working at the Tower.
Kai's uncle and the gentlemen who's manor was robbed, Alric is a very kindhearted older man who's retired from his job as a mage at the Tower.
The main setting for Demon Mage, it's a place where young mages go to learn their magic lest they go haywire.