Akuyaku Reijou nano de Last Boss wo Kattemimashita

Aileen d’Autriche experiences a sudden breakup with her fiancé in front of her school, triggering memories of a past life. She discovers she has been reborn as the villainess in a dating sim game, where the plot dictates her death by the demon king in three months. Determined to avoid this fate, she resolves to make the demon king, Claude, fall in love with her as part of her survival strategy. The story includes four additional chapters.