The Storm Guardian
Thanks to his skill as a helmsman, Rackam navigates the Grandcypher to the mass of dark clouds, where Tiamat is waiting for them. Gran and his comrades must face this great primal beast to save the Port Breeze Archipelago and its guardian deity.
Aired 30/04/2017EP 5 - The Storm Guardian

Granblue Fantasy: The Animation
This is a world of the skies, where many islands drift in the sky.
A boy named Gran and a speaking winged lizard named Vyrn lived in Zinkenstill, an island which yields mysteries. One day, they come across a girl named Lyria.
Lyria had escaped from the Erste Empire, a military government that is trying to rule over this world using powerful military prowess.
Gran and Lyria, in order to escape from the Empire, head out into the vast skies, holding the letter Gran's father left behind - which said, "I will be waiting at Estalucia, Island of the Astrals".
Note: The first two episodes premiered on January 21st as a special.