This story begins at the end of the world, a place known as the Southern Water Tribe. Here, in the middle of its wide, blue ocean, lies a statue of a woman wearing traditional water tribe clothing. This woman, of course, is Avatar Korra, the last Avatar. She was the last because, for some unknown reason, she chose to break the Avatar Cycle. But in doing so, she saved not just the human world, but the Spirit World as well. This statue was made in honor of her and her sacrifice. 15 years ago, something strange happened in the world. The sky became grayish, strange weather occurrences and strange light patterns, and beams of light were seen from the Northern and Southern Water Tribes, where the portal to the Spirit World exists. It lasted for quite a few hours before it stopped. After that, Avatar Korra suddenly returned. She had vanished one year prior. Except, she wasn't the Avatar anymore and she looked terrible, her clothing ripped in several places, particularly in the lower-left part of her stomach where a hole resided. It seemed like she was stabbed, blood was around it, but there was no wound. Two strangers, men, were also accompanying her. Tenzin, Avatar Aang's son, and along with his family, the only airbenders left, was thrilled to see her again. Korra was like a daughter to him. They really bonded and got close during her airbending training. He was very worried when she had disappeared and never gave up searching for her, even when most people had. Her disappearance had left some lingering resentment in some people. Even when she returned, she had been gone for over a year, some people couldn't really forgive her for leaving them. Especially after she told them that the Avatar is no more. The Avatar was eventually forgotten over the years and her story began to fade into legend all around the world. People still knew who the Avatar was, but it was just old story. Of course, aside from Tenzin's family, Lin Beifong, former police chief of Republic City, Mako and his girlfriend Asami, and his brother Bolin were there too to greet their long-lost friend. They all asked her the same question, where did she disappear to four years ago and who are these people accompanying her? Before she answered, she asked them if anything strange happened. They told her everything, but when they asked what it was all about and how she knows, she didn't answer. Or rather she did, but was being very cryptic about her answer. "To save the world," she answered when asked why she broke the cycle. Other than that story, no one really knows the truth about what happened. No one except for one person, and the truth is scarier and more intriguing than anyone could imagine. A non-bender and in his mid-30s, he lives in the Southern Water Tribe with his two children, Katara, his daughter, named after one of the greatest waterbender and healer in the world, and Jace, his son. Katara is the older of the two and very much resembles her mother. Like their mother, they both are waterbenders. One time, they were playing together, waterbending and such, with their father near the coastal wall. "Woooooo…!" Katara shouted. "One day, I'm gonna be the best waterbender in the whole world." "Yeah, right. Best after me, you mean?" her brother replied as they splashed water at each other. "But you know what would be really cool? If we could learn another element, like fire, or maybe air. Yeah, airbending. Can we, daddy?" "Hahaha, well, unfortunately, no," he answered, to their disappointment. "Oh, why not?" "It's just the way things are. That is, unless you're the Avatar," he said, smiling. "Yeah, I know," she said still playing around. "Daddy? What happened to the Avatar?" Jace asked. He exhaled before continuing, "Well, now that's a very long story." He then took the children and climbed up the stairs to get a good view of the ocean and a view of the statue of Avatar Korra in the distance. The Southern Water Tribe built this statue for her a long time ago, despite all the hatred and criticism from most people. They still respected and believed her. She was one of them after all, family. "There's the Avatar right there, the last one," the father stated pointing at the statue. "Yeah, I know who she is, dad," Katara said. Looking at the statue brought about feelings to the surface for the children. "I miss mom," Katara said. "I know you do. I miss her too," her father replied, hugging her. "But dad, you know the legend, right? About what happened with the Avatar, I mean." she asked. "Yeah, dad. Can you tell us?" Jace continued. "Maybe," he said with a smile. "Come on, dad. Please tell us. Pleeeaasseee," they said, grinning. Their father sighed before telling them. "Well, like I said, it's a pretty loooong story," he said while sitting down. "Are you sure you guys really wanna know?" They both nodded, sitting down too. "Alright. Well, as the legend goes, it started 15 years ago…."