The devil’s daughter, SALEENA, falls in love with a reaper, IZZY, while he’s dropping off damned souls in hell, but her father forbids the relationship. The love birds decide the only way they can be together is to elope to earth taking on human form and overthrow Saleena’s estranged brother, Simon, as the devil’s heir apparent and top demon lord amongst humans. But Simon is the head of a powerful conglomerate, and he’s not going out without a fight. Saleena enlists the assistance of TESS, the only demon ever to cross Simon on earth. Izzy and Saleena plot and launch an elaborate plan to steal Simon’s organization from under his nose one human worker at a time, but they also make time to cultivate their love for each other and wallow in the joys of the flesh. Meanwhile a magic sword-carrying young man named NATHANIEL “NAT” BRENNER, who was trained by a pseudo-religious faction called the Order of Light, becomes a thorn in Simon’s side while searching for an angel-human, champion of humanity known as the Host—whose mission and true identity cannot be initiated until Nat delivers the magic sword. If Simon’s hands are not full enough, a mysterious assassin named SHEBA kills three of his demon lords at one of his covert research labs in Stanton, North Dakota. As the sibling rivalry heats up, Saleena and Simon discover the devil is using their feud as a decoy to draw out the Host. They must unite to foil their father’s plans, but their alliance comes with a high price. Saleena’s forced to make a serious sacrifice that brings the sibling’s battle to an end, but it may be too late—not only for the devil’s offspring, but for humanity too! The future of humanity hangs in the balance, and Nathaniel is determined to thwart the devil’s plans and find the Host.