Because the Miraculous anime centers on teens ... Adrien has a crush on Ladybug. But Marinette (who is Ladybug) has a crush on Adrien. But neither of them knows each other’s secret identities.

making her angry at Marinette. The Miraculous Ladybug doesn't erase her memory of it, so Cat Noir upgrades his power into a "Miraculous Cat Noir" that can destroy memories. Where to Watch ...