You Do Need power plug adapter while traveling from Saba to South Korea.

Here is Why You Need An Adapter

The outlet and plug type used in South Korea is F and in Saba are A and B. This is how they look like.

Saba

In Saba, outlets of type A and B are in use.

Type A

Type B

South Korea

In South Korea, outlets of type F are in use.

Type F