Marinette Dupain-Cheng/Ladybug

Marinette Dupain-Cheng is one of the main protagonists of Miraculous: Tales Of Ladybug & Cat Noir is a student in Miss Bustier's class at Collège Françoise Dupont in Paris, France and a budding fashion designer who wants to have her own brand one day. With the Ladybug Miraculous, when inhabited by Tikki, Marinette transforms into the superheroine Ladybug, gaining the power of creation to stop Hawk Moth and his akumatized villains. She is also the leader of the French Miraculous superhero team. Marinette is voiced by Cristina Vee.

In "Kwamibuster", after Tikki is captured by the titular villain, Marinette wears multiple Miraculous but activates the Mouse Miraculous to become Multimouse, a mouse-themed superhero. In the same episode, Multimouse's various copies transform with the Mouse Miraculous combined with the Ladybug, Cat and Fox Miraculous to become Multibug, Multinoir and Multifox respectively.

In "Feast", after defeating the sentimonster that was controlled by Hawk Moth and Mayura, Master Fu began to train Marinette in order to pass his title to her as the New Guardian of the Miraculouses.

In “Reflekdoll”, Marinette obtains the Cat Miraculous, which when inhabited by Plagg, will be able to transform her into Lady Noire, gaining the power of destruction.

In “Ladybug”, after being expelled from school, she is nearly akumatized by Scarlet Moth into Princess Justice. However, her akumatization is interrupted because of Nathalie Sancoeur's illness and it is never fully completed.

In "Miracle Queen," after Miracle Queen the temporary Miraculous holders to be her slaves, Marinette wears the Dragon Miraculous combined with the Ladybug Miraculous she already owns, to become Dragon Bug. Since then, Marinette becomes the new Guardian of the Miraculouses after Master Fu relinquishes his role as Guardian and passes it to her.

Analysis
 The Importance of her Normal Life 

Marinette’s normality as a character allows the audience to relate to her. As she has a lot of typical attributes of a normal teenager. Despite the fact that she’s a superhero, the show keeps reminding us that she’s still a normal teenage girl as well. The theme song makes a point to remind us of her normality. She has schoolwork, friends, crushes, responsibilities and family. Realistically, everyone has these things. The show links her normal life with her superhero life.