King Neptune is a coelacanth merman and the king of the Ryugu Kingdom on Fish-Man Island. He is also the current patriarch of the Neptune Family, father of Fukaboshi, Ryuboshi, Manboshi, and Shirahoshi, and the husband of the late Queen Otohime. Hordy jones and his crew, the new fishman pirates, hate humans and fishman and he is now old thanks to the drugs he took. Neptune seems to be very blunt as for his personality, and he’s a very caring father