Ladybug and Chat noir are invited as the guest of honor to a masquerade ball. With akumatized victims happening almost several times a week and it being harder and harder to keep their identities a secret how will they prepare? Will they be able to go without revealing their identities? And how will they be able to control their growing feelings for one another? And what will they do when Ladybug reencounters someone that she wishes she could forget?