What do you think of this idea:

An unorthodox sorcerer delves into the dark arts. Shunned by his peers and exiled into a far away land, he tries to uncover the mysteries of magic by whatever means. One of the lores he is investigating is Demonology. He intends to bind a demon and enslave it to his will. Gathering his courage and making as many wards as possible, he draws a summoning circle one night and calls forth a succubus. However, the wards fail and a short battle occurs where it is found that they are evenly matched. Both decide that combat is pointless, but the adrenaline has stoked a certain [i]fire[/i] within them... and so a battle of a different sort begins.

I'll play as the sorcerer.