On late August 2021, an unexpected zombie outbreaks occurred in two simultaneous location: Hyosan High School and Hyosan Hospital. It all started when Lee Byeong-Chan sent the infected Hyeon-ju at the isolated room at night. When student Hyeon-ju bites the nurse, a mechanism started a massive zombified outbreaks that spread hundreds of students, as well as tens of thousands of residents of Hyosan. Now, the small remnants of high school students faced a difficult survivalism hardship on how to

When Nam-Ra was requested by Bare-Su to allow Nam-Ra to bite Bare-Su at any body part (construction break-time), Cheong-San and the others were startled and discontented to see the lover eater Nam-Ra just make Bare-Su half-infected. After the bombing, Cheong-San faced important struggles with other friends on how to adapt sustainable better life at the quarantine base. He symphonizes gloomy On-Jo to rest assured about the process of the grievance on the losses from her father and the entire s