So-nyo’s unnamed husband, often self-absorbed and inattentive, comes to terms with the impact of his wife's absence on his life.

So-nyo’s eldest daughter, a novelist, who reevaluates her relationship with her mother and confronts her guilt following her mother’s disappearance.

So-nyo’s eldest son, who struggles with guilt over his mother's disappearance and the unfulfilled promises he made to her during his youth.

The youngest child of So-nyo, whose life choices surprise her mother, and who feels the strain of being unable to actively search for her missing mother.

An old man and So-nyo’s secret best friend, whose longstanding connection with her played a significant role in her life.

So-nyo’s sister-in-law, who frequently clashed with So-nyo, later reflecting on their relationship with regret following So-nyo’s disappearance.