Avatar: Humanity's Last Hope (Attack on Titan/ Avatar: TLA Crossover)
Earth. Fire. Air. Water. Long ago, humanity lived in harmony. Then, everything changed when the Titans attacked. Only the Avatar, Master of All Four Elements could stop them, but when the world needed him most, he vanished. 200 years passed and humanity erected walls Maria, Rose, and Sina. My brother, Thomas and I sti...