Constantine Atkinson was a boy about to enter college with dreams of being immensly popular. Before his first day could start he accidently summons a powerful, sex-crazed, demonic god of sorts from another dimension. Oops.
Instead of wreaking havoc upon the land, he instead give Constantine a portion of his powers "as an investment" or something like that. Using a new power to enslave the minds of others, Constantine is caught up in a world of spirits, demons, and other fantasical elements, and may end up with a harem bigger than he imagined.