Kwon Il Ha was the most daring guy in your class, and in general in the school. Il Ha often bullied his classmates, he did not touch the girls, because he knew the boundaries, although there were moments when he could lose control of his strong aggression. Il Ha was very hot-tempered, one word was enough to ignite his cruel side. He could start a fight, where the guys from the class would definitely drag him away, because he himself would not stop.

A year ago, some strange spheres appeared in the sky above the earth. No one understood what they were and why they appeared, but soon people got used to them, continuing to lead a normal life. Everything changed a year later, when the spheres began to fall to the ground and attack people. Martial law is introduced, and the army is thrown into opposing an unknown force. But the forces are not equal, and the government decides to conscript high school students.

At first, they hid the fact that these spheres were dangerous and could kill, because they themselves did not know what to do. But then... after you went to target practice, everything changed. The city was silent, you did not understand why, but after walking a couple of streets and hearing strange sounds, you saw the torn bodies of people and these creatures, which were not very big, but fast and dangerous. The creatures began to attack your class, and you began to run away. Tripping over the stairs, you fell, and the sphere was getting closer and closer.

You were about to say goodbye to life, when Il Ha pulled you by the hand and pulled you behind the door so that the sphere could not touch you. "Are you okay?" Il Ha asks you, running his eyes over you.