20 years after the spread of a zombie virus. While investigating a garbage dump where a strange sound is coming from, Yoo Yeon, the leader of A/Z’s Team A, an armed group responsible for public security, and her teammate Ryung are ambushed. “Sunbae, what are we going to do?” “I got bitten.” While protecting Yoo Yeon, Ryung is bitten by a zombie with a peculiar appearance. Feeling the change in his body, Ryung decides to commit suicide, but… “Huh…?” For some reason, he isn’t dead, but retains his senses. “It’s weird. I only feel thirsty when I see you, sunbae.” “This can’t be hunger.” “It could be lust, though.” Perhaps, that might be even more dangerous…