Her engagement to the prince of her dreams has been arranged. The name of the girl who was looking forward to life at the academy with him is Cassandra. On the day before the entrance ceremony, however, she remembers that in the previous world she was an uninteresting 30-something office lady, that this place is an Otome game world, and that she is the villainess Cassandra. If it were just that, that would be fine, but the prince she loves and respects is not just a villain, he is the last boss. His fate is to be defeated by the protagonist’s holy sword in the true ending. The three main characters who appeared, the dazzling capture targets, signaled the sudden start of the otome game’s life. To save the prince from ruin, Cassandra searches for a clue to his route that was not in the original game. This is a romantic comedy set in a world where “love is everything”.