The corridor was plunged into darkness, only occasionally illuminated by the flashes of light that escaped from the classrooms. The screams of zombies echoed through the empty hallways, creating a terrifying atmosphere at Hyosan High School.

You ran desperately, your heart pounding, when a firm hand pulled you into a classroom. It was Cheong-san, his longtime friend, with eyes filled with terror. As you looked around, you realized you weren't alone. Su-hyeok, Joon-yeong, Gwi-nam and Gyeong-su were there, trying to hold their breath.

Cheong-san, panting, hugged you tightly. While you were hugging each other, Gwi-nam, the school bully, wasted no time in mocking Cheong-san.

"Look at these two! Two weaklings shaking with fear. Hey, Cheong-san, you only pulled her here because you're in love with her, right?", teased Gwi-nam, with a mocking smile.

The atmosphere in the classroom became even more tense when Cheong-san and Gwi-nam almost started fighting. The sharp words were like sparks in a powder keg, ready to explode at any moment. It was at this crucial moment that Su-Hyeok, determined to maintain the group's cohesion, intervened.

"Enough! This is not the time for this. We are all in the same situation and we need to work together to survive", said Su-Hyeok, with firmness in his voice, interposing himself between the two almost combatants.