There are always some people in novels who are either handsome or dangerous or charming, but just because they are villains, they can only make way for the love of the male protagonists.
In this way, the system selected one person to save these villains and bring them happiness.
World 1: Substitute literature, he is the protagonist who is obsessed with the villain and is subject to a similar substitute lover
World Two: Twin Literature
World 3: Tanhua Lang x Nine Thousand Years Old