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Duusu is a minor antagonist/anti-hero in the 2015 French superhero cartoon series Miraculous: Tales of Ladybug and Cat Noir. She is the kwami of the Peacock Miraculous, who helps anyone who possesses it to transform into a peacock-themed superhero, although she is currently under the control of Nathalie Sancoeur, whom she helps transform into the supervillain Mayura.
Thousands of years prior to the series, Duusu and the other Kwamis travelled the universe, unable to interact with any creatures, particularly humans. This was until a mage forged the Miraculouses, so Duusu and the others could both interact with mankind and grant them the ability to transform into heroes; Duusu and the Peacock Miraculous able to give a person the ability to grant other people superpowers. However, Master Fu eventually ended up making an (unspecified) mistake that resulted in the Guardian's Temple being destroyed and the Moth Miraculous, Peacock Miraculous and Miraculous Spellbook being lost, Duusu along with them. Decades later, through unknown means, Gabriel Agreste acquired all three items.
In "Sandboy", Duusu is briefly mentioned by Sass, who notes that she isn't around to help the other kwamis trying to contact Nooroo.
In "Mayura", in order to help Hawk Moth after he is cornered by Ladybug, Cat Noir and their allies, Nathalie activates the Peacock Miraculous and uses Duusu to transform into Mayura off-screen. After creating a sentimonster to save Hawk Moth, Nathalie presumably returns the Miraculous and Duusu to Gabriel's safe.
In "Reflekdoll", Duusu transforms Nathalie into Mayura to create the sentimonster Reflekdoll. Hawk Moth and Mayura are ultimately defeated, and, after they both detransform, Duusu expresses excitement over what has just happened. However, her excitement quickly fades as she becomes concerned over Nathalie falling to the floor coughing. She asks her if she’s alright, to which Gabriel says that she will be fine and is just tired. She becomes excited again only for Gabriel to tell her to give Nathalie peace and quiet.
In "Ladybug", Duusu is seen with Nathalie when she is resting following another coughing fit, with him taking the Peacock Miraculous away and reminding her of how dangerous it is to use a broken Miraculous, not wanting her to help him at such a cost. Despite this, Nathalie steals the Miraculous back from him as he is sleeping and buys an Eiffel Tower keychain, activating her Miraculous in the sewers afterwards.
Duusu becomes confused as to why they are there, and Nathalie tells her that she is going to create the most powerful sentimonster that ever existed. Duusu begs her not to since she should be resting, although Nathalie responds that she wants to be the one to give Gabriel Ladybug and Cat Noir's Miraculouses. Duusu begins to cry about how romantic Nathalie's efforts are. Later, Duusu is seen again when Gabriel confronts Nathalie over disobeying his wishes after saving her from Ladybug and Cat Noir, and, after being told the he doesn't need help finding the Guardian, Nathalie gives the Peacock Miraculous back to Gabriel, telling him that she'll be there for him if he ever needs Mayura again.
Duusu has a very sporadic personality. She can be happy one minute and then overly sad the next. She is very easily excited and seems to enjoy chaos, though she is very concerned by Nathalie's declining health caused by her damaged Miraculous.
|“||Yahoo! That was awesome. [...] No, it wasn’t awesome at all. Oh, oh, oh! Are you okay, Miss Nathalie?||„|
|~ Duusu shows concern for Nathalie’s health.|
|“||No, don’t do that! You should be resting!||„|
|~ Duusu begs Nathalie not to use the Peacock Miraculous.|
|“||Ah, oh, oh! It’s so romantic!||„|
|~ Duusu after Nathalie explains her plan.|
- She and Nooroo are the currently the only known kwamis who have fallen into the hands of a villain.
- She's the only kwami known at the time who didn't appear in Season 2.
- Her name may be based on the Serbian and Croatian word "duša", meaning "soul."
- She is the kwami of Emotion.
Miraculous: Tales of Ladybug & Cat Noir