After defeating a villain who throws out seeds of love, the two superheroes accidentally get hit by them and after he's been deakumatised, they wake up the next morning in a rather... unusual situation.
When Marinette slips up and reveals her identity to Chat Noir, their lives are flipped up-side down. Romance flourishes, secrets grow, and Papillon grows more daunting with each passing day.
WARNING: MAJOR SPOILERS