The Big Four Avatar Au

This is really unexpected but yea. Harmonic Convergences had ended light will prevail for the next 10,000 years. But it came at a cost. Korra lost all connection to the past Avatars. But Raava has a way to restore it, finding this four special people, will be able to restore the connections little does she knows that Time is of essence. Hijack Pairing alert, and more as we go along