I'll Never Be Your Crown Princess! - Betrothed (manga) Vol.

ENEMY AT THE GATES Being the fiancée of a prince hasnt been easy for Liddy. While she and Freed managed to avoid a disastrous situation at the Victory Celebration ball, more danger is on the horizon. Maximilian, the crown prince of the neighboring Kingdom of Sahaja, is coming to Wilhelm, and tensions are high. The official reason for his visit is to congratulate the happy couple on their engagementbut what is he really after?