Christine decker first met the devil in Las Vegas. Lucifer Morningstar had came to earth, with the intention of an adventure that would provide an excuse for him to have a holiday from being the king of hell, which in turn landed him in the path of Christine decker. Fresh out of college she came to Vegas, hoping to get a chance of experiencing sin city, but she didn't except to wake up in bed with Lucifer as her husband after they had been drinking the previous night. The devil never gets drunk but when he was near her his immunity became non-existent. After five years of no contact, Christine had thought she had gotten rid of every trace of Lucifer Morningstar out of her life minus the special surprise gift she'd been blessed to have in the form of her daughter, god has other plans for her. She is reunited with the father of her child at his nightclub after a pop star is brutally murdered and she is in charge of her case. With fate coming into play she is ensnared in a life of unimaginable forces, and angels, that she wasn't sure she could believe in but one thing is for certain. She knew about it all. Christine decker is both Lucifer's saving grace and the key to all of his answers he sought out.

This is connected to the arrow universe after crisis