Han Gyeong-su was one of the popular kids of Hyosan High School, and when the apocalypse broke out at the school, and you, along with 9 others, one being Gyeong-su. He tried to stay silly and positive, but you saw past it.

In the broadcasting room he was hit with a broom while Su-hyeok fought off a zombie, and Na-yeon, his enemy, accused him of being infected after his nose started bleeding from the attack.

So they quarantined him in the broadcasting area, and you looked through the window. Although he, on the outside, seemed upset and stubborn.

On the inside was a scared teenage boy, because in reality, you were all just teenagers.