Fire, Air, Water, Earth.
It's been 96 years since Avatar Korra and her friends stopped the Equalist Revolution in Republic City. Ever since then the world has been sure that peace reigns and that benders and non-benders live in perfect harmony. Any attempt to ruin the peace had been stopped in it's tracks by the Avatar.
Unfortunately, all good things must come to an end. Avatar Korra passed away 16 years ago. Since then, the White Lotus has been searching for the new Avatar but has had no luck. Without the Avatar, crime has begun to clime out of control. The White Lotus is beginning to fear that they may find the Avatar too late.
Thunder booms in the distance. Clouds loom over a dense forest making it as dark as night. A lone figure is laying low, moving through the thicket as quietly as possible, blindfolded. He's currently training his senses, trying to feel the vibrations in the earth. Trying not to be mauled once again by that demon beast. He silently wishes he brought his pistols.
He snaps his head around. A branch broke. He knows that beast is nearby, he just knows it. That thing has the best intentions but never ceases to freak him the fuck out. The figure moves toward where he heard the noise, trying his best to keep his presence a secret. Unfortunately, that thing is too good. He felt the patter of feet behind him too late.
The giant white spirit dog jumped right on top of him, and he screams in frustration. Rolling out from under it, he chucks a boulder straight for where he assumes it's head to be, but it leaps out of the way. It bounds so lightly and quickly on the ground it's hard for the boy to keep track of it. Drops of rain begin to fall, distracting the boy just enough for the dog to tackle him again. It keeps the boy pinned on the ground, while he flails and shouts in frustration.
The dog barks and takes off his blindfold. The kid calms down and sighs. He lost this fight, and the last one, and the last one, and the last one. That demon beast is just way too good for the boy, no matter how good of an earth bender he is. He pats the dog on the head. Good dog. Best friend. Behind Jade, that is.
Jade: HEY! WHERE ARE YOU GUYS?
Speak of the devil. The boy groans.
Jade: BOTH OF YOU, INSIDE, NOW!
Bec bites his shirt and starts to drag him in the direction of their home, much to the boy's discomfort. You don't argue with Bec, he does what he wants.
Jade: Good boy!
She pats him on the head and gives him a small chunk of meat. He drops you and runs over to her. He's always loved her more than you, but that's understandable. He is her dog. Besides, Jade is the only person you know who could actually manage to keep a spirit as her pet. He's hostile to most everyone he meets, but he cares for the boy as well. Probably because he's lived with it for most of his life. The rain starts to come down more steadily.
Jade: You two know you shouldn't be outside with such a huge storm coming, it's too risky. Besides, dinner's ready!
Jake: Gadzooks, Jade, we were practicing! Well, he was practicing, I was trying not to get killed.
Jade: You know very well Bec would not kill you! He likes you too much! Right boy?
Bec barks and wags his tail.
Jade: Come on in, it's time to eat!
Jake: Yes! I'm so hungry! We can practice more afterwards, right?
Jade: You simply do not listen, do you? The storm's gonna be too big! No more practicing today!
Jake groans and reluctantly follows her inside. For a cousin, she sure does act a lot like a mom. He loves her anyways. Jade has insane talent for earth bending, potentially one of the best in the world. Bec was the one who has been training her ever since she was old enough to walk. She's Jake's mentor now, since he can't communicate with Bec the way she can.
After a nice warm home cooked meal, Jake makes his way to his room. He and Jade live on a cliff, overlooking both the ocean and the island. He always enjoys just sitting on his bed at night and just looking out the window, staring at the beautiful landscape you call home. He loves living here and wouldn't trade it for anything.
He and Jade are the only inhabitants of this island. Nobody knows about it. Jake lives here as a result of an accident, a shipwreck that happened not to far. He was only five years old and traveled the world with his parents. They were bombarded by a furious storm that ripped their boat to shreds, and if it hadn't been for his father water bending him as far away as possible he would have died along with everyone else on the ship.
He fell unconscious and washed onto the shore of the island, found by a very loving and caring Jade. They aren't actually cousins, but it feels that way. He gets drowsy watching the rain and falls asleep.
The next day, under the bright noon sun, he's training once again with Jade. Once again he's blindfolded.
Jade: Alright, do you know where Bec is?
Jake: No. No I do not.
Jade: Then find him, silly!
Jake stops on the ground, just how Jade taught him, and senses Bec not very far away.
Jake: He's behind me, right?
Jade: Yes, yes he is! Good job, Jake. Now fight him.
Jake: What? Wait I don't think I'm re-
He's cut off - Bec pounces on him. Jake creates a pillar that slams into Bec's chest, stunning him temporarily. He takes advantage of the moment and starts throwing a barrage of circular earth discs at him. A couple hit, but then Bec is back on his feet and barreling toward him. Jake quickly panics and launches himself in the air to avoid it, but suddenly has no clue where the demon dog might be.
Bec plucks him out of the air with a tackle.
Jake: Come on, get off!
He struggles and flails more and more but the spirit simply would not budge.
Jake: Get off, dammit!
He tries chucking a rock at Bec's head, but still makes no progress.
Jake: GET THE FUCK OFF!
Bec suddenly goes flying into the air and hits the ground with a thud. Jade stands there bewildered, and Jake slowly sits up and removes his blindfold.
Jake: Oops.
Bec whimpers a little and shakes his head. He turns to Jake in similar disbelief and cocks his head.
Jade: How did you do that? That... that windy thing?
Jake: What? He beats me up every day! I just got frustrated and just... I dunno... air bended a little I guess.
Jade: Have you been able to do that the whole time? Why wouldn't you tell me?!
Jake: Egad, Jade, I didn't know I could do that! Don't you think I would tell you something like that?
Bec saunters over to Jake and rubs his head against him. Jake starts to scratch him behind the ear.
Jade: Do it again!
Jake: Do what again?
Jade: Do the windy thing!
Jake: Oh! Okay, I can try!
He stands up and faces the ocean, then tries again. This time, instead of air, he produces a small flame and sets his sleeve on fire.
Jake: Ah! Get it off get it off get it off!
He jumps around and waves his arm wildly. Jade runs over an pushes him into the ocean.
Jake: Hey!
Jade: You wanted me to get it off! Don't get all upset now. But the fact that you can do that... that's very interesting. It can only mean one thing.
Jake: Yeah? And what's that?
Jade: It means you're the Avatar, Jake!