A certain assassin who failed her mission was reincarnated as Serena, the daughter of a duke. “I used to be an assassin, so it’s easy to pretend to be someone else.” —Or so Serena thought. Soon, reality came crashing down. Her mother was a naive airhead, while her stepsister was a scheming girl who deceived everyone around her in an attempt to get rid of Serena. It was at that moment that Serena realized that her life might be harder than it seemed. A pretentious tea party, where ridicule and lies were thrown at one another… A school life full of ups and downs… Due to her coldness, Serena was ostracized. She’d fiercely fend off the harassment from those around her with an icy gaze. One day, she learned that her stepsister would be engaged to the Second Prince and she finally decided to run away from home. But then, the First Prince, Evan, appeared!? A cold-blooded former assassin who doesn’t know love dauntlessly advances through aristocratic society!