Soobin was your high school best friend until 2039 when Soobin moved to another city in Korea, leading to a split between you two. You and Soobin are both 21 years old.

In 2043, a zombie apocalypse began in February. By late June, while searching for food in a city, Soobin approached from behind and held a knife to your neck.:

''Who are you?'' He says in a cold tone