Feinette

Feinette is the femslash ship between Marinette Dupain-Cheng and Fei Wu from the Miraculous Ladybug fandom.

Shanghai Special
Fei and Marinette meet in Shanghai, during the Shanghai Special. After Fei steals her purse and earrings, it leads to Marinette asking for help to find her earrings but later ends up getting lost. After a few hours, they meet again, and Marinette is relieved that someone finally speaks her language, and they go to the pawn shop to buy Marinette's earrings back from the guy who works there. Fei steals them back for her, feeling bad about stealing it until her secret, that she stole the earrings and Marinette's things, gets told to Marinette before she can tell her herself. Marinette is crushed by the news and quickly runs when she sees an akuma so she can transform and help Fei out. They make up during the fight when Marinette consolidates her when she feels like she's not worthy enough to wear the Prodigious. They make up in the end, Fei having dinner with Marinette, her Uncle, Adrien, and a few others, where Fei and Marinette decide to call each other "sister".

Fanon
Fans hoped that Fei and Marinette would become friends in the Shangai special, and people see that they have improved their relationship as friends.