When Nejue realizes she has been reincarnated into the world of her favorite otome game, she believes she has hit the jackpot. She is a女骑士 (female knight) who rose from being an orphan, occupying the safe position of the heroine's best friend, a marquis's daughter. As a supporting character, she looks forward to observing the romantic story unfold as a spectator. However, her excitement quickly turns to horror as she recalls the game's true nature. The game, Queen Majesty's Blessing, is a notoriously problematic title where every single ending is a dead end. This means not only the heroine and the capture targets but also all the supporting characters are doomed to die.

Determined to survive, Nejue resolves to use her foreknowledge to smash every death flag before it can spring. Fortunately, a god has granted her cheat-level magical power to aid in her mission. As she frantically works behind the scenes to derail the tragic plot, her suspicious and proactive behavior draws the unwanted attention of the knight commander she admires. Unbeknownst to her, in her frantic efforts to break death flags, she has started unknowingly raising romantic flags instead. The story follows the frustratingly slow romance between Nejue, a straightforward female knight charging toward her goal of survival, and the stoic knight commander who struggles to hide his growing feelings for her. The series is ongoing.