Psycho

Marinette and Luka recently broke up but stayed friends. Then, a week later, Luka asks Marinette to meet him later that week. Marinette goes, feeling bad for not being able to be the perfect girlfriend Luka so obviously deserves. But things take a dark turn and Marinette is shocked to find Luka isn't the person she thought he was.

Everything in this story is original, besides the characters, which belong to the creators of Miraculous Ladybug: Tales of Ladybug and Chat Noir.