Cat Blanc.For St. Athanase Day, Marinette's friends boost her to quit stalling and just confess her love to Adrien and give him a gift. She is not allowed inside the Agreste mansion, so she decides to transform into Ladybug and leave it in his room. However, Adrien spots Ladybug leaving his room and finds the gift signed by Marinette. He deduces her secret identity and experiences a joyful epiphany. Suddenly, Bunnyx reappears and brings Ladybug to the future where Paris is in state of destruction. Ladybug discovers Cat Noir has been akumatized into an evil white version of himself called "Cat Blanc". Bunnyx observes the chain of events from when Adrien and Marinette became lovers. Unfortunately, Gabriel forbids them dating, and an akuma chases a disheartened Marinette, but Adrien transforms into Cat Noir in front of Marinette and Cataclysms the akuma. Nathalie witnesses Adrien's transformation and reports this to his father. A battle lures the superheroes into finding Hawk Moth's lair where he reveals himself as Adrien's father, Gabriel, and unveils his mother Emilie Agreste. Cat Noir falls into utter conflict and Hawk Moth evilizes him into Cat Blanc, giving him the power of ultimate destruction. But all of this is too overwhelming for him and heeleases an infinite power, splitting the moon in half and destroying the whole city and turning everyone (including Hawk Moth) into stone, leaving him alone in his world. The present Ladybug successfully frees Cat Blanc from the akuma, turning him back into Cat Noir. But she realizes that she has to use her Lucky Charm to fix the past and has Bunnyx take her ten minutes back from the moment Adrien saw her in his room. She erases her signature from Adrien's gift, preventing Adrien from figuring out her identity (including Ladybug herself), therefore ceasing the temporal catastrophe. Ladybug values her friendship with Cat Noir more than ever and they stare at the sunset together.