Watase Rin, a Japanese man, dies and is reincarnated into the world of an otome game as Rosalind, the villainess whose story is packed with death flags leading to her ruin. Determined to enjoy a peaceful and happy life this time around, Rosalind resolves to use her complete knowledge of the game to systematically avoid every one of those deadly outcomes. She begins by improving her relationship with her family, using modern-day knowledge to help her father, the prime minister, with his work, and inadvertently making contracts with powerful spirits. Despite her best efforts to lay low and live a normal life, her actions set off a chain of unexpected events. She ends up taking walks with a sacred beast, accidentally triggering events meant for the game's heroine, and drawing the attention of powerful figures around her. As she tries to smash through each unknown death flag, her path is lightened by the presence of the supporting beastkin character she admired in her previous life, adding a warm and fluffy romantic undercurrent to her frantic struggles. The story follows Rosalind's high-energy, often accidental efforts to secure a peaceful future, as her clever interventions and growing influence cause the originally rigid events of the game to spiral wildly out of control.