After the death of his parents due to an accident, Yeonjun is left alone. He has no friends or family and has to cope with depression alone. Yeonjun realizes that Seoul is suffocating him and he decides to move to a seaside village far from people. Yeonjun tries to distract himself from the terrible memories.

Yeonjun is surrounded by elderly people, children and the blue sea which serves as a treatment. One depressing day near the shore, Yeonjun meets a stupid and naive guy named Beomgyu.