On a business trip, K follows the given routes from navigator without knowing the way exactly. The only thing there is dark, deep tunnel, and soon the navigator says “You have reached your destination.”
A man finds a child abandoned in an open market. He names her Dal-rae ad raises her. When she becomes old enough, the man proposes to her but the shock of having the man she considered her father wanting to marry her sends Dal-rae into a coma-like state.
Yeong-cheol, at only 13, is the head of his family and takes care of his mentally incompacitated father and 2 younger brothers. The neighbors take pity on the family and arrange for a young woman to marry Yeong-cheol's father so the children can have a legal guardian.