I married this Dragon King instead of my sister Episode 10
Episode: 10
Episode 10 recap: Vigil Outside the Door
Cassian stands outside Seraphina's bedchamber door for three straight days and nights while she remains inside. As Seraphina packs her belongings, Cassian knocks on the wood. He swears on his honor as a knight to marry her and spend his life making amends for the wound he caused. Seraphina leans against the door in tears and offers no response. Cassian finally walks away. Seraphina watches from the high window, knowing she leaves for the dragon realm the next morning and that a completely different bride will stand at his altar.