Fed up with being hopelessly single, high schooler Erika makes up a boyfriend to fit in. When her lies start to unravel, her schoolmate Kyoya offers to be her pretend boyfriend—for a price. With no other choice, Erika finds herself at the mercy of a blackhearted prince! But is Kyoya truly as blackhearted as he seems?

Graduation has arrived, and Erika can’t say that she’s done anything more than be yanked around on Kyoya’s leash. But can an entire high school career really be summed up in a single ceremony? Plus, Erika and Kyoya’s future is revealed—from their time dating long-distance to their first days living under the same roof to…wedding bells?!