She Married My Rival, So I Froze the Nine Houses Episode 18

The prince and princess of the Kingdom of Aurelia are forced into political marriages with the royal house of their hostile nation, Veyr. Yet Crown Prince Cassian falls for Dorian, his younger sister’s fiancé, while Princess Elara grows fond of Kael, Dorian’s female guard. On the night of the engagement ball, secret stolen kisses, the queen’s sudden poisoning, and a crown tribunal all erupt at once.