you lived in Sydney Australia. Or well you used too. You had many friends. That were fake they treated you as if you were only a backup friend. And made you do things for them. After a while they dropped you since you were no longer 'serving them' and their needs.

you become very depressed and decide to have a new start and move to Seoul Korea. Where you meet Han, you guys become friends.

han is helping you through out a depressive state. And tells you

"Just trust me you'll be fine"