Marinette had a close relationship with her paternal relative Henry from Berk City, and he moved to Paris with his girlfriend to get along with her. Meanwhile, Lila started to spread lies that she knows the son of the Mayor of Berk City a.k.a. Henry...
The phones suddenly buzz off informing that the Akuma is on the loose followed by an explosion that occurred outside. Everyone evacuated the building while the main heroes went to their hiding spot to transform. Just as they're about to transform, Henry and Astrid go to the same spot.
Henry: Marinette? What are you doing here?
Marinette: I was about to ask you the same thing.
Henry gets nervous that his and Astrid's secret would be revealed, but Astrid lets him know that they will trust them. Henry sighs.
Henry: Fine. Just don't tell anyone, okay?
The duo nodded.
Henry: Nightmare, Scales shock!
Astrid: Luna, Spines slitter!
Magic spread around the Berk City citizens and they are now transformed into superhero-themed costumes.
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Marinette and Adrien were shocked in awe but they kept it themselves.
Marinette: Don't worry. We have a secret too.
The dragon duo raises their eyebrows in confusion.
Marinette: Tikki, Spots on!
Adrien: Plagg, Claws out!
Magic spread around as the duo transformed as well.
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The dragon duo was shocked but nodded in reply before they left their hiding spot facing their new or last current Akuma.
~~~~~
A massive explosion came out of nowhere as Volpina creates destruction illusion everywhere. The heroes are on their way hid behind a rooftop.
Cat Noir: Geez. She always gets in our way.
Ladybug: Nadder, do your thing.
Nadder aims her spiked arrows at Volpina and shoots right past the villain. Volpina noticed it and saw Ladybug and Cat Noir alongside the dragon duo.
Volpina: Oh, you're here. And you brought a backup.
Ladybug: You mean like, new allies from another city?
Volpina smirked and started to create illusional clones of herself but it was stopped by a turtle-themed shield that flew across it and flew back to the turtle-themed superhero.
Carapace: I don't think so, Dudette.
Carapace was at the other roof with Rena Rouge and Queen Bee by his side. Volpina grunts and was about to make another illusion when a lyre hits her and flew back.
Viperion: Don't even think about it.
Viperion and Ryuko are at the park as they help evacuate the citizens there. The heroes charge at the villain as it tries to getaway. Volpina creates another illusion of her clones to lure them away from the real one.
Ladybug: Let's split up!
The heroes split as they chase the illusional clones. Nadder makes a rain of arrows as all of it hits the illusions. She immediately caught the real Volpina as she ended up paralyzed.
Nadder: Guys, I got her!
Ladybug: Nice job, Nadder!
Ladybug grabbed the Akuma and de-evilize it before it turned back into a white butterfly. She turned Paris back to normal with just one simple word and the team "pound it". When Lila turned back to normal, she was surrounded by police and was now arrested for her crimes outside her villainous manor.
Night Fury: I still can't believe that we did it.
Ladybug: You could say that, Cousin.
The heroes beside Cat Noir and Nadder stared at them in disbelief.
Night Fury: I think I owe you an explanation.
The heroes nodded and jumped away from the public.
~~~~~
Alya: So, let me get this straight. You two discovered a box that contains 7 Miraculous of the 7 class of dragons?
The duo nodded after an explanation as all of the team and Kwamis including Hiccup's are in Marinette's room with both cousins' Miracle Boxes.
Kagami: And you're saying that you discovered them in a cave but you realized that the box and the Kwamis chose you as their guardian?
Hiccup: You could say that.
The room was silent for a while until Luka spoke.
Luka: I must say, you guys are awesome.
The duo was surprised and the team agreed before they went on a group hug.
Marinette: And just so you know, your secret is safe with us.
Hiccup: Thanks, Blueberry. But there's still one problem right now.
Marinette: And what could it be?
Hiccup: Are you going to forgive the class after this whole Lila incident?
