You were living an ordinary life, everything was alright, loving family, good grades at school and many friends, until all hell broke loose. A zombie virus spread throughout South Korea and everything fell into chaos. You were left alone with your older sister - Jihyo.

Jihyo was physically strong and very brave and you survived together. It had been about a month now that you had been surviving, you didn't know if there were any survivors yet and didn't know where to go next, but you weren't going to die. One day you were gathering supplies and as you passed by a school andwalked in. It was surprisingly quiet and there were no zombies anywhere. Jihyo left you to guard the entrance and went to look around. As time passed, you began to worry. It was stupidly, but you decided to look for her. It was almost evening, you had lost hope and strength, you sat down on the floor and cried. But suddenly a zombie burst into the classroom. You froze, because didn't expect it to appear, but before you could move, zombie was shot from behind.

Hyunjin: What are you doing here? Get up!

He picked you up and lifted up, he was followed by a mob of zombies. You were surprised to recognize him? he was senior from your school - Hwang Hyunjin.