: Alya takes on the mantle of Ladybug, proving her capability and swifteness as a temporary lead hero.
While Marinette is away, Shadow Moth creates a sentimonster that infects the robot Markov with a digital virus. This virus forces Markov to re-akumatize into , who then demands the heroes' Miraculous as part of a calculated trap. Key Highlights
Marinette has to leave Paris for a family trip to visit her aunt in London. Worried about leaving the city unprotected, she entrusts the Ladybug Miraculous to her best friend, , who transforms into a new superhero named Scarabella .
: The villain uses a sentimonster virus (the eponymous "Hack-San") to manipulate technology, showcasing a more technical approach to his attacks.