Okay, good news and bad news. The GOOD news is, Sabine is actually the younger sister of the King of Coccidellenae. He summons his sister and her family to the kingdom, away from Lila Rossi and her lies. Marinette is happy to get away from it all for a while. The bad news? Its not for a while. The King had a deal made with the neighboring King and Queen of Simosa, that would unite their kingdoms and amend things from the past. The friendship will be cemented by a marriage between their son and a young woman from the Cheng royal clan. Marinette's uncle decides that SHE will be that young woman. After Lila's lies unravel back home, Adrien, Alya, Nino and the class gets back in contact with Marinette, and are relieved to receive her forgiveness. Their joy is short-lived once they learn of Marinette's impending nuptials. They fly to the kingdom to save her, only to find themselves struggling to find a way free her from her royal duty. As if that wasn't enough, the bridegroom seems pretty shifty to Adrien. He and Marinette will have to figure out what's lurking beneath the surface of all this white silk and wedding bells-and maybe uncover some buried feelings-before she is forced down the aisle.