An Observation Log of My Fiancée Who Calls Herself a Villainess

Crown Prince Cecil possesses an intellect so formidable and sharp that navigating the complexities of his daily life has become profoundly monotonous and dull. His existence lacks any genuine challenge—until the day his spirited fiancée, Bertia, abruptly shatters his routine with a most baffling declaration. Proclaiming herself to be a "villainess," she insists that their current reality mirrors an otome dating simulation game from her previous life. According to her bizarre recollections, she is destined to fulfill the antagonistic role of the villainess, complete with the ultimate goal of having their royal engagement successfully annulled. Determined to see this preconceived narrative through to its bitter end, Bertia sets out to orchestrate a series of comical misdeeds designed to disrupt the prince's peaceful world. Yet, rather than feeling threatened or annoyed, Cecil finds himself utterly fascinated by her earnest yet misguided antics. Instead of punishing or dismissing her, the brilliant prince decides to step back and adopt the role of an amused spectator. Through his watchful eyes, he quietly observes her relentless efforts to act the part of the wicked maiden, turning what was once an uninspired royal life into a thoroughly captivating spectacle.