Marinette Dupain-Cheng, a shy high-school student, has inherited some magical ladybug-shaped earrings. The ornaments grant the power of Luck to whoever wears them. Yet there is one condition : they have to be worn in an altruistic manner, or else, beware of the consequences . Whenever the situation needs it, Marinette turns into LADYBUG, the guardian angel. When Paris is in peril, Marinette becomes Ladybug. Little does she know, her school crush Adrien is actually Cat Noir, another city-saving superhero.