龍之奇蹟

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.

Thaim believes Aktha is still alive, so he and the eccentric Saila begin to unravel the hidden truth of another world in their search for Aktha; in Yokosuka, Nagi seeks to uncover the secret behind her dreams and has a mystifying encounter.

Nagi is astonished to see Thaim suddenly appear; although she was wary at first after learning why he came to her world, she joins his quest for Aktha, and an unpleasant surprise awaits them.

Thaim finally finds Aktha, only to discover the great hero is not the same man he once admired; Aktha turns down Thaim's request to return and save Upananta; unable to accept Aktha's refusal, Thaim challenges the powerful hero to a duel.

Nagi finally learns the hidden truth of Upananta, while Thaim uncovers another, deadlier secret.

The touching moment of Nagi's reunion with her mother is cut short by a vicious intruder; with the attacker at their heels, Thaim and Nagi head to the island where Aktha is hiding.