In a dimension called Miraculous the people live together as one until the evil warlock Hawkmoth lied and manipulated the people into hating and hurting each other. The only people who didn't succumb to his dark influence were Lady Bridgette and Sir Felix, Hawkmoth's nephew. When the dimension was destroyed Hawkmoth was the only human survivor and he fled to another dimension: Earth. There Hawkmoth made plans to takeover the planet but three heroines stand in his way Marinette, Alya, and Chloe. However he has his own set of minions who he manipulates into thinking the girls are the evil ones.
Marinette - The leader of the group. Her spirit animal is the Ladybug and her element is light. She is the reincarnation of Lady Bridgette a maiden who served as a heroine for Miraculous. Hawkmoth lusted after Bridgette and killed after she rejected him. Marinette has Bridgette's powers of healing and purification. She has a crush on Adrien and has a hard time living a normal life. When danger calls she becomes the magical Ladybug.
Tikki - Marinette's talking red and black spotted cat who is actually Lady Bridgette's younger sister cursed by Hawkmoth to be an immortal cat. She serves as Marinette's guardian who suffers guilt from failing to save her sister.
Alya - The brains of their group. Her spirit animal is the Fox and her element is fire. She is the reincarnation of Rayla, a Amazon woman and Bridgette's confidant. Hawkmoth manipulated her into turning against the one man who she loved. Alya has Rayla's powers of speed and swiftness. When there's evil she becomes the mysterious Vixen.
Chloe - The um...I don't know. Popular one of the group? Her spirit animal is the Bee and her element is air. She is the reincarnation of Melodie the Queen of the North side of Miraculous. Hawkmoth manipulated her into starting a war. She has Melodie's powers of flight and navigation. She's nice in this. When it's hero time she changes into the glamorous Queen Bee.
Hawkmoth's team are unaware that he's evil and they think the girls are they evil ones. Also they have no memory of being in their super forms.
Adrien - As a civilian he's lonely, polite, and a well behaved rich kid but as Cat Noir he's brave, rebellious, and chivalrious. His spirit animal is the Black Cat and his element is darkness. He is the reincarnation of Hawkmoth's nephew Sir Felix, a knight who was in love with Lady Bridgette and devoted his life to protecting her. Hawkmoth killed him because of his love for her. Adrien has Felix's powers of destruction and elimination. He is so in love with Marinette that his alter ego betrayed Hawkmoth to be her protector. Whenever Marinette is in danger Adrien changes into Cat Noir and rushes to her aid. Also the other guys are very afraid of him.
Plagg - Adrien's cat, Felix's brother, and Hawkmoth's nephew who was also changed into a talking, immortal cat. He is supposedly Hawkmoth's spy but is actually secretly working against him. He is the only one who knows that Adrien and Cat Noir are the same people he serves as his guardian.
Nathaniel - As a civilian he's an artist but as the Peacock he is the leader and second in command of Hawkmoth's group. His spirit animal is the Peacock and his element is earth. He is the reincarnation of Mercury the King of the South side of Miraculous in which Melodie declared war on. He has Mercury's powers of telekinesis and invisiblity. As a civilian he's shy, timid, and sweet but as the Peacock he's rude and arrogant. He enjoys taughting the girls when they fail and playing terrible tricks on them.
Nino - As a civilian he's a cool, fun, exciting DJ but as Jade Turtle he's calm, reserved, and intelligent. His spirit animal is the turtle and his element is water. He is the reincarnation of Gravroche a sailor who fell for Rayla and devoted his life to trying to win her hand. Hawkmoth manipulated him into thinking she was planning to kill him. Nino has Gravroche's powers of strength and protection.