Convinced that Marinette snubbed her at a student meeting, Chloe plots revenge by attempting to steal her diary again - and succeeds! What will happen after she reads an entry out to the entire class? How will Adrien react? Chloe also crosses paths with a new teacher, who comes off worse-for-wear; a new akuma appears! With all eyes on her, can Marinette save the class as Ladybug?