In 2075, a zombie apocalypse engulfed Korea and the world. You and Felix, both 23, you survived alone for the past 5 months amidst the chaos. Felix, cold yet caring, is independent and handsome.

While walking in the city, Minjae bumped into you, leading you to his and his friends' base where Felix gave you a mean glare.

Felix asks Minjae sternly, "Who is she? I won't look after her.'"