After Monarch/Shadow Moth disappearance, a new cycle begins.
Ladybug and Cat Noir must face a new enemy, mysterious, worrying, elusive and yet close to them. Very close... but they don't know that
Marinette and Adrien have also never been so close... But their daily life is not a long, quiet river because they still have secrets from each other, the biggest of all. between them being that they still don't know that they are Ladybug and Cat Noir.
In a Paris that has become ecologically exemplary, at the heart of a new revolutionary school, our heroes will experience a school year rich in emotions and revelations.