For a demon, finding a mate is a difficult, anxiety-inducing process. Or he might just accidentally bite his gaming buddy during a bout of experimental sex and bam—mate found!
During a book club meeting where The Witcher is discussed in its entirety, meaning books, series and games, Barion again meets Jon, the zombie, who lives in Sammy's basement, and the two bond over their mutual love of the game.
They begin gaming together, doing videos for Jon's YouTube channel where he tests games that are to be released to the public. During one of the videos, they are asked what their ideal game would look like, and the idea for Demon Wars is born. Working together on the game brings Barion and Jon closer together and their friendship deepens every day, which worries Jon's Grann, a zombie like himself and the witch queen of New Orleans. She wants Jon to come back home, while Jon realises he loves spending time with Barion.
After some friendly—and oh so subtle—prodding from friends and family, Barion and Jon decide to explore the potential of their relationship. They have sex, and Barion bites Jon in the heat of the moment, marking him as his mate. They're both over the moon, even though they now have to visit Grann in New Orleans because the family and the ancestors want to check Barion out.
They quickly realise that something is wrong there, and it turns out Grann has been challenged by a voodoo priest who practises the blackest of magic. Barion will do his best to save the day, Grann—and his relationship.