S1, E1: Nagi is a pessimistic teenager troubled by dreams of Upananta, a fantastical world where fish swim in the sky; this world is on the brink of destruction, and it lost its greatest dragon-riding hero.

S1, E1: Nagi is a pessimistic teenager troubled by dreams of Upananta, a fantastical world where fish swim in the sky; this world is on the brink of destruction, and it lost its greatest dragon-riding hero.