"I have someone I love. So please break off the engagement, Lady Veritas." "Huh? Could your real name be...?" I was sent into the novel, living quietly as the Lady of a Duchy before suddenly finding out that my ordinary fiance was the male protagonist. That night, I confessed to a man who looks like my favorite villain while being drunk. "Will you get engaged to me? Marriage or dating? Cheating is fine too...." "Well, I guess..." That man was actually him, Crown Prince Hyperion. Wait... I'm getting engaged to the crown prince? Isn't that too much for a supporting role? Hmm, the real protagonist might be someone else!