Before her last year of high school, Marinette Dupain-Cheng gets into an accident forgetting most of her memories. Trying to live her life without any real clue of her past, she ends up falling in love with a close friend named Luka Couffaine. Adrien Agreste, Who was her boyfriend before the accident, comes back into Marinette's life again, determined to win her heart back. Will she stay with Luka or go to who her heart once belonged to?