"Hawk Eye" Seo Ji-na was once an ace sniper in the army and had a 2,937-yard record kill under her belt. Because of her, her team also took on the moniker of the "Hawk Eye" team. She has always considered herself to be cold and stone-hearted, and believes that calmness and rationality are the keys to survival and victory in battle. But it was after the Zombie outbreak that her heart was truly tested for the first time.