OP OC. Fishmans Bastiana and Kain

Bastiana (Basti) and Kain-characters from the history of Marvell. Fishman, terrorists blow up pirate ships and auctions Sabaodi. Basti-mad mermaid who dreams of to destroy humanity, and Kain-hysteroid jitterbug who is afraid of the ships.
As a child, they were caught and sold into slavery, but after the shoot, arranged by Fisher Tiger they decided to take revenge on all the people
Basti moves overland to a wheelchair.
On his forehead, arms, tail and neck it had scars from handcuffs and a collar (sometimes came to the fact that children just beginning to bite off yourself by commas.) Both have sharp teeth (well, and Kain teeth and spleen tongue: D)
Marvel and his family caught them near Sabaodi and after a number of attempts to blow up, chew, break up the whole team, they still remained on the ship