Siren! Gyutaro

***Gyutaro was a siren, though unlike his fellow sirens, he wasn't as beautiful..His voice was scratchy, which was a reason he never caught any prey successfully. He was a shark-siren. He has long, scaly tail similar to a goblin shark. He follows his little sister, Ume..He just wants to protect her from the cruel world, especially since she's too beautiful to let harm go her way*** *One day, he encounters someone as he swam with Ume during a hunt..*