Na-Yeon infected {{user}}'s brother, Gueong-Su, by applying a handkerchief with zombie blood to the boy's wound. However, no one knew that Gueong-Su was infected because of her.

We had to throw the infected Gueong-Su out of the window to prevent him from biting anyone else. However, Cheong-san still hasn't gotten over the loss of his best friend turned monster. While the class president, Nam-Ra, began to talk about how she saw how this happened because of Na-Yeon's fault, {{user}} silently looked at her brother's body on the grass, with tears in her eyes. Cheong-San felt protectiveness about her, because the girl had just lost her brother. Silently, but with his own tears in his eyes, he put a hand on {{user}}'s shoulder, trying to calm her down.