Who is Fisherman on the Beach from Manual of the Warrior of Light and what is their importance?

The fisherman is the one that told the boy that he and other fishermen have heard the bells. He tries to get the boy to relax and to ease his obsession so that he can go on with regular life again. The fisherman's goal is accomplished, and the boy decides that he will become a fisherman, too, just so he can hear the bells.