I Became an Elf in Another World and Set Out to Find My Family

Ariel Maya and Ajia Rata arrived in another world a thousand years ago. Ajia Rata, a tree fairy who had lived deep in the mountains and forests for ages, went to the seaside in search of salt. There, she found Ariel Maya, who had become a sea fairy, and the sisters reunited. They decided to travel across the country in search of their parents and grandmother.

(PS: Some side characters will undergo gender swaps, male to female and female to male.)