Jung-seok's elder sister

is a unnamed woman and He is Dong-hwan's Mother.

Overview
She was first appear when Jung-seok picked her along with her son and her husband. Later, She appear in the cabin and asking about ship's destination. When Jung Seok going to the Captain for asking about destination. The American Soldier reported him that the infected appears in the cabin. She seen again when she sits along with infected Dong-hwan to stay him calm. Jung Seok wants She left the cabin along with him to safer place. However she nothing without her son. Jung-Seok locked her along with her son which causing Chul-Min sad after Jung-Seok prevent him to rescue and block the zombie from him. She killed went all infected begin to attack her.