My Master, The Dark God

Noah is an ordinary office worker who wakes up inside a novel, where he has taken the place of its villain. Hoping to shape his fate, he purchases Oz, a god of darkness just beginning to stir, and makes him his servant. Their uneasy arrangement sets up a clash between Noah's modern sensibilities and the dangerous power of a being who is far older and more formidable than he first appears, with high-society intrigue and a pull toward fated love complicating every step.