There is a new exhibit in the museum. As Alya digs deeper to find out about the Miraculouses, she sees that the symbol that is with every past Miraculous holder- that Marinette recognizes as the symbol on the Miracle Box- is also on the new exhibit. Master Fu recognizes the new exhibit as a sentimonster he accidentally created in the past which destroyed the Order of the Guardians. Worried that the sentimonster will also hurt Marinette and Adrien, Master Fu takes away their Miraculouses. Meanwhile, Mayura brings the sentimonster to life and Hawk Moth akumatizes it, increasing its proportion into "Feast". As Master Fu tries to ride on his bike away from the monster, Marinette and Adrien put on humorous costumes, proclaiming themselves "heroes" in disguise and try to get to the monster in their civilian forms on their bikes as well. Master Fu realizes his mistake in taking the Miraculouses and gives them back as he is cornered and loses his bike in the progress. Ladybug and Cat Noir defeat the monster, restoring the temple and resurrecting the monks of the Order. Now that Hawk Moth knows who the Guardian is, Master Fu leaves town, but only after letting Marinette know that she will be the next Guardian.
The wait is over and the dust has settled over Paris. With "Nemesis," the 26th and final episode of Season 6, "Miraculous, les aventures de Ladybug et Chat Noir" has closed one of its boldest chapters to date. Season 6 premiered in France on TFOU in March 2025 and finished its French run on October 11, 2026. Across those 26 episodes, Thomas Astruc's superhero phenomenon did something few long-running animated series attempt: it changed the status quo for good. If you've just finished the finale and are still processing it, this debrief is for you.
A new cycle that took real risks
To understand why "Nemesis" lands so well, you have to remember where this season started. Season 5 ended the Agreste family arc, the storyline built around Gabriel Agreste, voiced with chilling restraint by Antoine Tomé as Hawk Moth and later Shadow Moth. Season 6 is the first season of a brand-new arc. With a new holder of the Butterfly Miraculous turning Parisians into akumatized villains, the writers had the freedom to rethink the show's formula. The premiere, "Climatiqueen," made that clear immediately, and the season kept introducing threats that felt different from the old villain-of-the-week pattern, including a wonderfully imaginative antagonist in the early episodes.