When Marinette and her class go on a school field trip to Westalis with Gabriel Agreste and Nathalie Sancoeur to learn about fashion, the reveal of the two superheroes' true identities aren't the only unveiling of a protagonist's double-life. Coincidence or fate, they attend one of Eden Academy's fashion courses for their practice over the duration of their vacation which just happens to be one of the same class Anya goes to. After Monarch attacked Westalis and Ladybug and Chat Noir showed up, WISE demanded Agent Twilight to go on a side mission to capture Ladybug so they could question her-but what will happen to Westalis without the holder of Tikki with Monarch on the loose?