I have read the novel and she is going to be kidnapped by the foreign prince but her fianceé will save her and she will basically stop a war between the two countries. However, the lil bro prince will kidnap her and lock her in the basement that he made into a room, but she will escape and after that, she will break off the engagement and all of them will propose to her. This isn't the end bc I got tired reading the rest but is basically it lol