Longg

 is a kwami that is connected to the Dragon Miraculous. With their power, its wearer can use the Miraculous to transform into a dragon-themed superhero. They are currently dormant in their Miraculous in Master Wang Fu's Miracle Box, as seen in "Sapotis".

Appearance
Longg is red with four black horns on their forehead: a black horn on each side of their face, and red horns from the upper back of their head with black spirals. Additionally, they have golden eyes, a whisker on each cheek next to their mouth, two small black spikes on their lower back, and a long tail with three black tips at the end.

Abilities
Longg can fly, levitate, and phase through solid objects. They can also carry objects that are larger and/or heavier than them.

As a kwami, Longg is able to transform the holder of the Dragon Miraculous into a dragon-themed superhero, although it is unknown what the transformation looks like or what powers the transformed person gains.

Before Season 2
Before the Miraculous jewels were created, Longg and the other kwamis traveled all over the universe unable to interact with humans. Then, thousands of years ago, a mage created the Miraculouses. When it's Miraculous was not being worn, Longg was dormant in the Dragon Miraculous, which was stored inside the Miracle Box.

Season 2
During Season 2, Longg was dormant in the Dragon Miraculous.

In "Sandboy", Longg was celebrating Nooroo's birthday in the Miracle Box with the other kwamis, and they were excited when Tikki and Plagg arrived. The kwamis marveled at the gift Tikki brought, a marker, and played with each other. When the time to find Nooroo came, Longg got into position in an effort to contact him, but the kwamis contacted his wielder instead. Hearing his voice, the kwamis shuddered at the thought of being his slave and prevented them from being discovered when they all cut off the connection. They realized if they contacted Nooroo's wielder, rather than Nooroo, then someone must have been akumatized, and Tikki and Plagg's wielders would be in danger.

Trivia

 * Longg was first revealed from a second season trailer on August 31, 2017.
 * Thomas Astruc confirmed its name on Twitter on November 11, 2018.
 * Longg is the only currently known kwami to be based on a mythical animal.
 * Chinese dragons symbolize good luck, prosperity, heroism, boldness, and more.
 * The dragon is the fifth animal of the Chinese zodiac.
 * Longg's name is based on lóng (龙/龍), the Chinese word for "dragon."

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