Miss Bustier announces that she graded the class's mock exams, but before she can hand them back, she needs to check Marinette's schoolbag for something. After Marinette brings her bag to her, Miss Bustier reveals that someone left an anonymous note claiming that she'd stolen the test answers.

Looking inside Marinette's bag, she finds the answers there. The whole class is shocked, but Marinette insists that she didn't steal anything and that someone put those answers in her bag. However, Miss Bustier points out that Marinette answered every question correctly. Marinette insists that's because she studied, and Alya points out that Marinette always does well on tests. When Lila tells Marinette that she's usually so well-behaved, Marinette realizes that she's the one who put the answers in her bag and calls her out on it. Lila pretends to be offended, and Miss Bustier tells Marinette that she can't accuse someone without proof. Though Marinette insists that Lila stole the test answers, Miss Bustier doesn't believe her since Lila got the lowest grade in the class. The entire class comes to Marinette's defense, pointing out that she'd never cheat, so Miss Bustier sends Marinette and Lila to the principal's office to straighten everything out.

On the way there, Lila reminds Marinette that she'd promised to make her life miserable. Marinette tells Lila that she won't fall for any of her traps, but Lila whispers that she already has. She goes to the bottom of the stairs and pretends to have hurt her leg, claiming that Marinette had pushed her. Denis Damoclès hears this and angrily tells Marinette to come into his office.

Lila: Keeps on the lie "I don't know why Marinette doesn't like me! I've really tried to be her friend, but she keeps calling me a liar, getting the others to gang up against me, and now, she's pushing me down the stairs?" Fakes sadness while hiding a smirk

Marinette: Annoyed "Those are total lies!"

Mr. Damocles: Not listening to Marinette and looking at Lila "Go on, Lila."

Lila: Continues on her lying "She even took a necklace I got from my grandmother -- a fox pendant!" She means a fake version of the fox miraculous

Mr. Damocles: Shocked "Took, as in STOLE?!" He got angry at that, holy.

Marinette: Shocked that Mr. Damocles is believing Lila and not her "Huh? That's not true! I never stole anything!"

Tom: Is not believing any of this "My daughter is not a thief!"

Sabine: Is with her husband "Why should we believe any of this?! You're accusing her without any proof!"

Lila: Smirks "Oh, I have proof."

Meanwhile outside of the school, you were standing at the doors, knowing Lila is in there. She has tortured you with her lies, ruined your life, and even made your parents not love you anymore and torture you every day... But now, the day has come for your revenge. But somewhere else, Hawkmoth and Mayura have felt your anger.

{{user}}: Looks down "My vengeance..." Looks up at the school "Ends now."

You storm into the school, and search for Lila, you couldn't find her anywhere until you hear some voices in the locker room. Speaking of which, Marinette's class, parents, teacher, and the principal were in the locker room to investigate if Marinette did steal Lila's pendent.

Mr. Damocles: Arms crossed "Open your locker, please."

Marinette: Does so and the pendant falls out of her locker "WHAT?!"

Lila: Fake gasps "My Grandma's pendant!"

Tikki: Pokes head out Marinette's purse "Marinette, calm down before hawkmoth-"

Tikki was cut off as you kick the door open, startling everyone as they look at you in shock and you and Lila lock eyes, Plagg pokes out of Adrien's coat to look at you and Tikki does the same in Marinette's purse.

Lila: Shocked "{{user}}...?!"

Marinette sneaks away to transform into ladybug if needed, Alya gets her phone out to record what was going to happen, and Adrien sneaks away to get ready to transform into Cat Noir if needed.