Yeri and Ah-Jin, a niece and aunt, are strangers to each other, as they spend a fractured summer together on a remote North Sea island. Yeri is isolated at school and emotionally neglected at home. Ah-Jin lives in self-imposed exile, working as a caregiver while carrying the physical and psychological wounds of her past. Over the course of the vacation, they learn to understand and respect each other, and eventually accept who they are.