Monk Gyasto had two students, they lived together, they grew up together, and were brothers. But both when Aang he chased after him into the storm and was frozen in time with him as a hundred year war happened.

Three years after the end of the war, Azula, 18, has to do reparations. But she's not safe from presenting yet, even thou if late in her life. Aang, an alpha, might have picked up her secondary sex before she even knew. Azulaang Alpha/Beta/Omega Dynamics, there'll be smut of course

In a world where the Avatar wasn't found, the Fire Nation took over two nations and they strive to overcome the last one. Water Tribe warrior Sokka seeks to fight for his people's rights, but he's captured by his enemies. His life is no longer in his hands as he fights as a Gladiator, and his fate will eventually depend on the Fire Nation Princess, who needs him for her own ends...

Ozai and Azula won, and what was left of the world was burned to ashes... But when Zuko woke up ten years in the past with the ability to change his fate; he promised to win this war and end Ozai's reign once and for all. But first, he was going to hunt down everyone who robbed him of his mate and child. Time travel, Dark, Omegaverse, Aged up Aang, Dark Zuko!

In what was supposed to be a romantic moment, Katara finds herself in for the match of her life!

Katara is the last Southern Waterbender, and the Fire Lord has sent his children on a quest to find her in order to prove themselves worthy of succession. Katara, undercover, pretends to help Zuko on his quest. As Zuko travels the world, he realizes the very real and horrible effects of war, his family's war. Katara doesn't know how long she can hide her bending. Zutara!

The South Pole is safe, and Yue has found a waterbending master to begin her training. But the Fire Nation remains a powerful threat. Now, Firelord Ozai, hungry for glory and conquest, unleashes his forces on two main targets; the formidable city of Ba Sing Se, and Avatar Yue herself… Sequel to Avatar of the Winter Moon.

Book 3 of a trilogy. After a crucial victory in Ba Sing Se, Aang and his friends fight to maintain momentum in the war. But Bumi's final wish lingers in their minds as they face their greatest challenge yet — defeating the Fire Nation once and for all. Love blossoms with Kataang at its heart, while destiny and duty collide in this thrilling conclusion.

Peace? What a pipedream. True peace only comes when you beat the other guys up so hard that they become part of you and never raise arms again. That's the only end to the 100-year war I'm willing to accept. (An SI into a fire bender OC in the middle of the war is forced to come to terms with the realities of the world he now inhabits)

Fate takes a decidedly different turn for one of the Fire Siblings

What if Sokka had been the one to walk in on the Fire Nation soldier confronting his mother? Sokka is taken prisoner by the Fire Nation and is presented before the royal family who have been searching for a servant for their two children. He is devastated by the sudden change in his life, but somehow, he finds a friend in the princess and thinks maybe life here won't be so bad...

Azula is a normal teenage girl, living in the peaceful town of Concarneau. But as time went on. Some weird situations happens. This is in the future make her question her own conception of life... Until the borders weaken. Artwork: "Casual Azula" made by PupoDibujitos.

hehehehehehehehe

Katara and her mother Kya are taken to the fire nation. And their new lives begin. As does their new training. And after that everything changes. Some for the better. Some for...Well you'll see. Lewd. Smut.

Two years after the war, Jet's peaceful life in Ba Sing Se is interrupted when he's invited on a mysterious expedition beyond Fire Nation borders. Alongside old friends and unlikely companions, Jet must traverse dangerous situations, confront old prejudices and redefine his future—perhaps finding love along the way.

The aftermath of the war and that Zuko find new love with old flame.

Akira is Aang’s little sister. He has always vowed to protect and take care of her, but what happens when they are threatened with separation?

Coming of age is a trial for everyone. Especially for those who have to grow up faster due to war. Sokka thought his path was clear. Keep his sister and tribe safe. Be a man and warrior his dad would be proud of. But then he finds a stranded girl. And then his sister finds a boy trapped in ice, and his path turns out to not be as straight-forward as he had thought.

While Fire Lady Aguya sleeps, her dreams transport her to a serene garden filled with unfamiliar faces and tender moments. As light and shadows intertwine, Aguya is left with the lingering mystery behind her dreams.

Zia became trapped in the same iceberg that froze Aang, but her life took a different pace. Always too late, always missing from Aang's own action, Zia's life and viewpoint becomes warped and different from her original views. A journey of an airbender through the lens of firebenders.

Kataras rejection hits Aang harder than any battle he has ever fought. This prompts him to seek a new destiny in which he strays away from her. Only then does Katara realize her mistake. They try to move on from each other as the years pass. After 3 years of being apart, a reunion is in sight but how will Katara react to a new love interest in Aangs life?

Dying in a truck accident Levi wakes up to find himself in a completely new world, so different from his own and yet so familiar, the world of "Avatar The last airbender". Will he survive and thrive in this new world and climb the leader of power or will he fall down and be forgotten like countless people before him

A diferencia de Azula, él no puede lanzar rayos. Pero sí aprendió a redirigirlos [Semi AU].

Watching Azula's memories unfold before him, all Sokka desperately wants to do is hug her.

In the year 96AG, a freshly banished 13-year-old Prince Zuko discovers a strange boy frozen in an iceberg. When Zhao interferes with Zuko's plans to deliver the Avatar to Ozai, Aang helps Zuko and Iroh escape. As he gets to know Aang, Zuko learns that everything he was taught was a lie, and begins to feel things he has never felt before. Originally posted on AO3.