Patty Lowell, the lost heir of a prestigious family, is discovered at an orphanage, and J.D. Morrison brings her to his acquaintance Dante, who owns a business called "Devil May Cry." Dante takes on so-called "odd jobs," and at Morrison's request, he agrees to serve as a bodyguard for Patty. Reluctantly, he sets out to deliver Patty to her family, though he is somewhat annoyed by a job that essentially amounts to babysitting. While Dante appears to be a lazy good-for-nothing, he is actually a prolific demon hunter, a fact that proves useful when demons begin pursuing Patty. Soon enough, Dante realizes that there is more to this case than meets the eye, and he employs his particular skill set to keep Patty safe.