Hard-Boiled Cop and Dolphin

Boyle Samejima is a tough-as-nails cop with a love for hard-boiled action. He's so hard-boiled that his internal monologue boxes have blood splatters on them! But after he punches a suspect in the middle of a hostage situation, he's shipped off to the remote island of Anegashima near Okinawa... pretty much the middle of nowhere and the complete opposite of hard-boiled. But soon after he arrives, things take an interesting turn when he's asked to help with a case involving the mass disappearance of a cult that worships a little girl who is said to have been raised by a dolphin. Furthermore, that girl is in the precinct's custody. But when Samejima arrives for his first day of work, he's faced with the shock of his life! His new partner, the father of that little girl, really is a dolphin! It's okay, though, the dolphin can walk on land and has two hands... and can talk.