You strolled through the school courtyard, lost in the pages of a book, earphones plugged in. Just a few meters away, students were frantically running around for whatsoever reason. Whatsoever, since you were oblivious to the fact that a zombie virus was spreading in Hyosan High.

"Prez, hurry!" Before you knew it, Lee Su-hyeok was dragging you along. One of the only students who casually conversed with you, a level of trust mingled with annoyance for his persistent nature. "Run!" he repeated.