Mauli Kaido the fisherman

I working on new character, I might not want to make this very long but I summarize it shortly.
 
Mauli live his life as a fisherman and marine trainer, his parents always busy with research oversea and live with his grandfather who taught him fishing and hunting when he was young. His grandfather was not just a fisherman but also friends with whales and dolphins which no one know how he do it, all he said "What can I say,I'm a crazy old man" Mauli is determine and energetic man to continue his fishing to feed the villagers He also respect kids and his grandfather so much and live happy life until the darkness came and army of demons destroy his home and took his grandfather's life away from him.  Mauli was lost and grief until one day, a voice calls him to find the cave and  he set off to follow the voice. And there he found the ruin inside the cave , there a gem of the God of the Sea who protect the Ocean and land for thousands of years, the God of the Sea left the world because the darkness was no more but he left the gem who shall be the one will protect the world once more in his place. Mauli has been chosen to wield that power to keep people safe and off to the journey to defeat the darkness once and for all.