#phantasm chronicles

A journey of a young sea sorcerer with a third eye named 'Ariaya' starts as he rises from the seas He came cross a fish person who called himself 'Captain Fishsticks' The young fish person challenged him. At first, he doesn't seem to be much of a threat until Ariaya figured out that the captain's dagger wields the power to control the waves

(weird series-thing about adventurers going on dungeons and meet bosses, Ariaya is one of the main characters)