Marinette's dream job designing Gabriel Agreste's Christmas windows turns complicated when she's forced to work with Adrien Agreste - the boy she's never forgiven for a collège prank. Over twenty-five nights of late-night displays, grudges fade, sparks fly and secrets come to light, including an unexpected identity that changes everything. As sabotage threatens her work and her world, Marinette must choose: follow her head with her steady boyfriend, Luka, or her heart with the one who got away.

With high school ending, Adrien's world is put on hold when his father insists he immediately enter into an arrangement to marry Marinette. Desperate, Adrien convinces the heartbroken Marinette to fake a courtship, giving his father the illusion of control while Adrien secretly pursues his true passion. By the light of the moon, he is the fiercely loyal Chat Noir, dedicated to winning Ladybug's heart. By day, he is the dutiful, perfect boyfriend. The lie is his only defense, yet the mounting guilt of betraying Marinette- the key to his freedom- is unbearable. Caught between the love he publicly fakes and the love he secretly chases, Adrien must face the crushing weight of the question: Which life is the lie? 🩷 Co-written with @relreal 🩷 Inspired by the idea submitted by @ShaiviAggerwal