Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Korean goddess of wind and seas
Yeongdeung Halmang (Korean: 영등할망) was a goddess of the winds and the sea in traditional Korean religion, particularly on Jeju Island.
According to legend, the goddess resided in the East, but visited the island once a year, and sowed the foods of the sea, such as fish, seashells and other things which the inhabitants of the island lived of, and rituals were held to ask her to be generous.