Domino/Series

Pre-Series
Domino was the second realm to come into existence as the Great Dragon created the Magic Dimension; the first being Solaria. Once the Great Dragon finished creating the Dimension, it settled on Domino and fell into a deep slumber, using it as its final resting place. As it did so, the Great Dragon entrusted the royal family of the realm with its flame, leading to a long tradition of the Dragon Flame being passed down to the first-born heir to the royal throne. Additionally, thanks to the Great Dragon's presence on Domino, the realm's denizens enjoyed a long period of peace, prosperity and happiness.

Sixteen years prior to Season 1, the three Ancestral Witches and their son, Valtor, had uncovered the Dragon Flame's whereabouts on Domino and planned to seize it for their master, the Shadow Phoenix. To protect their realm from the Witches' onslaught, Domino's rulers, King Oritel and Queen Marion, founded the Company of Light: a group of powerful magical warriors from all walks of life. Eventually, the disastrous day of the Witches' raid came to pass and the Company of Light did their best to hold them and Valtor back. Unfortunately, the Witches managed to raid the castle in search of the Flame and were able to corner Oritel and Marion's daughters: Daphne, the current Keeper of the Dragon Flame, and baby Bloom. To ensure that the Witches would never get their hands on the Dragon Flame, Daphne transferred it to her baby sister, opened up a portal, and sent her off to Earth, where the Witches would never be able to track her. She then attempted to combat the Witches herself but her Sirenix powers turned on her due to a curse that the Witches had placed on them in an earlier confrontation that took place within the Infinite Ocean. As Daphne's powers forcibly rendered her as a disembodied spirit, the Company of Light managed to defeat Valtor, the Witches and the rest of their forces by the skin of their teeth.

To ensure that the Ancestral Witches would never bring devastation to any other realms, the Company of Light attempted to banish them to the nightmare realm of Obsidian, but unintentionally caused the demise of its two leaders as the Witches grabbed Oritel while being sucked into the Obsidian Portal themselves. Unable to break free from their grasp, Oritel plummeted into Obsidian with them as Marion, refusing to lose the last bit of family she had left, transferred her soul into Oritel's sword to join him in Obsidian. To make matters worse, the overwhelming amount of negative magic that emanated from the Obsidian Portal caused the rest of Domino's inhabitants to be sucked into Obsidian as well, and eventually froze the whole planet over.

With no living survivors, the Company of Light considered Domino to be a lost cause and left the realm until it faded from the minds of the general populace; only existing in historical records and fairytales. The only creature to survive Domino freezing over was the Roc. Later, snow monsters and goldums began populating the frozen wasteland.

As all of this went on, Bloom grew up on Earth under the care of Mike and Vanessa in Gardenia after the former found her in a burning building being protected by its flames.

Season 1
Domino had two appearances in the first season. The first being when Bloom chose this place for her simulator test and the second being when Bloom and the rest of the Winx went to Domino to find out more about Bloom's past and to possibly restore her stolen Dragon's Flame. This is also the place where Bloom (and the Winx) officially meets Daphne, face to face since discovering that she is her older sister.

Season 3
Although Domino did not have a formal appearance, it was seen through flashbacks and talked about numerous times. It was also indirectly mentioned in the last episode by Bloom when she promised to her birth parents to find them.

Season 5
It is first mentioned by Tecna after her Sirenix Guardian helped her solve which Yellow Reef holds the Gem of Courage. Tecna brings up an image of Domino on her holographic computer to pinpoint the exact location of the Reef. Today is also Domino's Renewal Celebration, as such, Bloom and Sky are already on Domino, making this the Planet's first official appearance in the series.

Bloom walks with Sky towards the center of the Domino Palace's courtyard. She is still worried for Daphne, her whereabouts unknown, and Sky comforts her, telling her that she is receiving a great honor and Daphne would be proud. That is when Bloom clarifies that it is Sky who is receiving the greatest honor. This is news to the amnesic Sky and it automatically makes him nervous. Bloom then retells him the story of his own courage and bravery that saved Domino in the first placed and shows him the sword he used to do it. Sky is in disbelief and cannot imagine him being such a brave person. Bloom comfortingly affirms that he is such a person and always will be, soothing Sky's insecurities. Then, King Oritel and Queen Marion arrive at the courtyard, Bloom then takes Sky to them which makes him mumble under his breath that he does not remember them either.

Flora, Aisha and Stella are also on Domino, standing outside the palace. Stella had all three of them change twice because the dresses were not presentable in her eyes. She is still pondering on how to make their current dresses better, forcing Aisha and Flora to remind her that they have to get going. Stella then draws inspiration from Domino's renewal celebration and sprays a flower producing dust onto their dresses. Happy with the outcome, the three finally enter the palace.

Oritel, Marion, Bloom and Sky do a final rundown on how the speeches will go. Bloom comforts Sky and after their friends greet the King and Queen, Stella receives a phone call from Tecna and Musa. The two explain that the Gem of Courage is in Domino's Yellow Reef. The fairies take off for their mission leaving Sky to cover Bloom's portion of the speech, which makes him more nervous. The Winx's bonded selkies, Desiryee and Illiris, and Phylla head towards Domino's Ocean Gate to assist and protect Serena from Tritannus. They fail in helping Serena and Tritannus absorbs her powers, he then enters Domino's Ocean Gate. The Winx themselves enter the ocean and is led to Serena where Bloom bonds with her, restoring her powers. Desiryee also hands Flora the Pendant of Eraklyon she found while on her way to help Serena.

The speech on Domino is then interrupted by the Trix who attack Oritel and Marion, freezing them solid. Daphne is shown this and it forces her to reveal the Source of Sirenix to protect her parents. The Winx on the other hand, finally finds the last gem and completes the quest. They head back to the palace, where Sky defends the still frozen Oritel and Marion but the Trix combined powers overwhelm him. The Winx arrive just in time to help him. The Trix are outnumbered and decide to leave. Oritel and Marion are unfrozen with the combined powers of Bloom and Oritel's sword. Flora returns Sky's lost pendant and he finally gives it to Bloom, the memory barrier that was mentioned by Krystal earlier is removed after this act and Sky's memories are restored. But, Sky gives Bloom some bad news: Daphne is Tritannus' prisoner and has been forced to reveal Sirenix's secrets. Bloom is upset but her friends comforts her, telling her they will free Daphne.

Eventually, Tritannus' dangerous antics has been fully recognized as a dimensional threat. The rulers of Eraklyon, Andros (both land and ocean), Solaria, Domino, Linphea, Melody and Zenith debate on how they will handle this. Faragonda holds the first summit through telecommunication but it is clear that no solutions are being made. As such, King Oritel offers Domino to hold a political summit and war council. The summit is extremely rocky as all the rulers have strong opinions, at most, half of the realms refuse to join the alliance against Tritannus. This is a major problem and it takes a very long time before all the realms finally unite and proceed to put an end to Tritannus' plans.

Season 6
In "Inspiration of Sirenix", Domino organizes a party for Daphne, due to the fact that she has returned physically and had reunited with her family. During that occasion, Domino was attacked by the Beast of the Depths, which the Trix summoned, but Daphne regained her Sirenix power and managed to steer the beast away, so the party ended happily.

In the "Vortex of Flames", Daphne became the crowned princess of Domino. During the celebration, Bloom felt weak, for sharing parts of the Dragon Flame to the Winx, and Selina released the Fire Eaters to attack Domino. Sky tried to carry Bloom to safety, but Diaspro lured him and Thoren to bring her to the Vortex of Flames and throw her down there, and told them that it may restore her powers while it would, in fact, kill Bloom. While the Winx fought back, Daphne went with the boys to stop them but Diaspro threw her in the vortex, which angered Daphne, so she tried to fight Diaspro, but she managed to escape. Luckily, Bloom rose up from the vortex after battling the five-headed dragon with her own Bloomix powers. They returned to the ball room and helped the Winx to defeat the beasts. When the celebration was back, Daphne goes to the balcony to meet up with Thoren and became a real couple.

More coming soon...

The Secret of the Lost Kingdom
After Obsidian was destroyed, Domino is restored back to its normal form. A party is then held to celebrate Domino's restoration.

Magical Adventure
The main setting of the second movie is Domino and thus, many scenes in the movie take place there.