Alya: I was right earlier, wasn't I? Gabriel was Monarch. Marinette: I never lied to you. Alya: Technically, you didn't. You just kept the truth from me and manipulated me so you wouldn't have to answer my questions. Wow, thanks Marinette. So this is what being BFFs is like?
The show saved me the trouble of needing to argue that Marinette was manipulative in Nemesis by outright saying that she manipulated Alya to avoid answering her questions. Nice!
This means that I can skip the tedious part of making my case that Marinette isn't a perfect innocent angel and go straight to the fun part of breaking down exactly how she tried to manipulate Alya and why those tactics work.
Just to get this out of the way: no, I'm not accusing Marinette of being some heartless manipulative mastermind. Most manipulation is learned intuitively, by people noticing what works and what doesn't work in order to get them what they want.
Marinette knows those things can make Alya stop asking questions that she doesn't want to answer, so she does them. How much she actually understands what it is she's doing is debatable. She may be thinking "I can't let Alya know no matter what" and so is willing to resort to tactics she knows are manipulative, or she may be running purely on instinct without thinking too much about why those tactics work.
So lets get into it:
Alya: I know you have a secret, I know it's about Adrien and I know you don't want to tell me about it. (...) *Alya shows Marinette the mirage of Monarch detransforming into Gabriel Agreste* Marinette: Why would I have done that? Why keep it a secret that Gabriel Agreste was Monarch?
Marinette's first reaction to being confronted with the accusation of lying is to double down and defend the lie by trying to poke holes in Alya's story.
This, by itself, isn't manipulation. However, it does show us where Marinette's head is at. She doesn't want Alya knowing about the lie, so she keeps trying to cover it up even after she got caught. She knows Alya isn't certain yet, that the guess she's making may be educated, but it's still a guess.
So she tries to exploit that uncertainty, sow even more doubt that this story is right. If Alya can't give a motivation or gives a wrong motivation, that would allow Marinette to point out how the story doesn't make sense and spin the entire thing as being wrong and illogical.
I would classify this as more of a debate tactic than a manipulation tactic. She's attacking the idea itself and trying to debunk it.
Unfortunately for Marinette, it doesn't work because Alya gets the motivation right.
Alya: To protect Adrien.
So Marinette switches to another tactic.
I want to add that I think Marinette bringing up how stressed and scared she is to try to get Alya to stop pressing is a learned response. It's worked before. Specifically, at the end of season 4. There, Chat learned that Ladybug had secretly recruited Rena Furtive and had had her helping out with battles without his knowledge, while deliberately keeping it secret from him. Which he wasn't happy about, but he set aside for the most part to deal with the akuma. And then Monarch stole all the Miraculous, Ladybug freaked out and broke down (understandably, that wasn't a manipulation tactic like it is during the Nemesis conversation), and he just comforted her, without ever getting mad at her, or even bringing up the fact that she kept an entire teammate secret from him. Like. Ever.
Of course Marinette would, consciously or subconsciously, try to repeat the same tactic. It worked perfectly last time.
Unfortunately for her, Alya is far less downtrodden than Adrien.
Great point!
I would even go further and say this is something she learned far earlier than the finale of s4. Or at least that she learned the mindset earlier.
Marinette:(gasps) Me, me, me! I can totally help you out with that. (drops plates in excitement) Tom:(catches plates) You mean, as a server? Marinette: Yes. I'll hand the macarons out to Adrien. I mean... (drops plates and knocks over fruit bowl before managing to balance the bowl on top of the plates with a banana and two oranges.) ...to everybody, of course. Not just Adrien 'cause Adrien's not the only one who likes macarons. Sabine:(teasingly) And the fact that Adrien is going to be there has nothing with it, of course. Marinette: Not a thing. Like, not in the slightest. I just want to help out my wonderful sweet parents who I love so much.(drops the balanced bowl and the fruit) (Tom and Sabine look at each other warily) Marinette:(dejectedly) You guys don't trust me. Then again, I'm such a klutz. Even I wouldn't trust me. (picks up oranges) Tom: Of course you're not a klutz, my darling. You're hired. We'll just— Marinette: (hugs Tom) Oh, thank you! You're the best parents in the world! (dances out of the room while singing, and crashes into something) Sabine: We'll just make twice the number of macarons. Just in case.
This is a conversation Marinette had with her parents in Animaestro (so beginning of s3). In it, Marinette sees that her parents are considering telling her no and so pulls out the guilt trip to convince them to say yes to what they know is a bad idea. In response, her parents fold like a wet paper towel.
Since this is the post for explaining the manipulation tactics she uses, let's break it down:
In this conversation, both Marinette and her parents are aware that 1) Marinette has ulterior motives for asking to be a server 2) she's objectively bad for the role and could cause some actual damage. Two things that make a pretty obvious "no" here.
But Marinette really wants that "no" to be a "yes", so she does something to convince her parents to change their minds.
Marinette:(dejectedly) You guys don't trust me. Then again, I'm such a klutz. Even I wouldn't trust me. (picks up oranges)
This conversation was never about trusting Marinette or not. While strictly speaking, it is a matter of trusting her as a server here, Marinette is speaking in far broader terms. She's claiming her parents don't trust her in general.
Good parents, loving parents, trust their children. But Marinette here is claiming that they don't trust her, which implicitly makes them the bad guys for thinking so badly about Marinette.
If this sounds familiar it's because should. The underlying mechanism of the manipulation here is the same as the manipulation she pulled on Alya, even if the execution is different.
Tom: Of course you're not a klutz, my darling. You're hired. We'll just—
Tom and Sabine very much want to be good parents, and they hate to see their daughter hurt or upset. Especially as a result of their own actions.
Where Alya would've managed to avoid this manipulation by going "do I not trust Marinette to be able to keep stable a large plate of macaroons while she's distracted by Adrien? No, I don't", Tom and Sabine fall right into the trap. They rush to soothe Marinette by "making up" for their sin of thinking so lowly of her by reassuring her that of course they trust her. Thereby giving Marinette exactly what she wants despite their better judgement.
Marinette: (hugs Tom) Oh, thank you! You're the best parents in the world!
Marinette then rewards her parents for giving her what she wants by forgiving them of their transgression and stating that they really are good parents. Not just good, but the best in the world!
Something which both soothes over any lingering discomfort from the guilt trip (so they come out of the interaction with a positive feeling about Marinette rather than a negative one) and incentivizes Tom and Sabine to act this way again.
But the really insidious part is this line:
Sabine: We'll just make twice the number of macarons. Just in case.
Tom and Sabine don't just fall for the guilt trip, they actively work to shield Marinette from the consequences of her actions.
Not only does she get what she wants despite it being a bad idea, she never gets to learn why it's a bad idea. There's a good reason why Tom and Sabine wanted to tell her no. What should happen is that she pushes to get what she wants and then gets a reality check that just because she wants something really badly doesn't mean that it's a good idea for her to get it. Someone can tell her no and be right to do so.
But that's not a lesson she learns, because her parents don't want her to experience the discomfort of her actions having consequences. So instead what she learns is that she can get whatever she wants with no downsides whatsoever. If someone thinks about telling her no, she can just guilt trip them to get them to change their minds.

















