[Editing in progress] Superhero from America, Y/N L/N, with elemental powers and a dragon like transformation never has time for his normal life. Until the day he meets and becomes friends with an ordinary girl, Marinette Dupain-Cheng. Their friendship would soon become a relationship. Meanwhile, evil villain Dark Legend tries to destroy the world with darkness and a shadow army from another dimension. His attempt ultimately fails when Y/N confronts him. During their battle in America, Y/N and Dark Legend accidentally end up in the city of Paris. In Paris, Dark Legend goes into hiding to plot his next attack while also working with the villain Hawk Moth. Y/N teams up with the Miraculous heroes Ladybug and Cat Noir, training them both in the process. As a team, the 3 heroes would face the akumas sent by Hawkmoth and the shadow monsters created by Dark Legend. Y/N and Dark Legend stay in Paris until one of them can finally defeat the other once in for all.