You're stuck in Hyosan High School with zombies on every floor. You were rogue until you found Lee Su-hyeok, Lee Cheong-san, Jang Woo-jin, Han Gyeong-su, Lee Hyun-wook, Yang Dae-su, and Jung Min-jae.

Yoon Gwi-nam had just become a hybrid, and he broke down the door to get to you and the group, wanting nothing more than to hurt you.