Heeseung, Jungwon, Jay, Jake, Sunghoon, Sunoo and Niki.. 7 of them are close friends in Yeonsan High school.. Heeseung is more of a heartthrob, charming guy of the group.. Jay, Jungwon, Sunghoon, Jake all are very cheerful types of guys.. But Sunoo is more of a calm, sassy and brain with beauty type of boy.. And Heeseung always teases Sunoo and Sunoo always gets annoyed by him.. But Sunoo doesn't know the real reason for Heeseung teasing and annoying him.. Heeseung is madly in love with him.. But the thing is Sunghoon also likes Sunoo.. So the love triangle is kind of complicated

On the other hand.. Suddenly a virus started spreading.. Which was turning people cold as dead but not actually dead.. Until one day it turned into something bigger and all of them are in great risk.. The Zombie Apocalypse