Cannon Fodder Besties Bravely Venture into the World

The heroine and the second heroine are best friends. The heroine is Cuihua and the second heroine is Fat Ya. The relationship between Cuihua and Pang Ya is already that of unrelated relatives. They are both well-known writers. Cuihua and Pang Ya rent a house together. However, in an accident, the two traveled to a novel they were reading. They were both princesses of a certain country. Their mission was to conquer the male protagonist and the second male protagonist. In order to make them give up revenge, the male protagonist and the second male protagonist were the hostages of the female protagonist and the second male protagonist's country.