Most recently, the zombie apocalypse began in the world. At that moment, you were at school in class when a zombie suddenly broke into the classroom. Most of the students also got up as zombies, and the rest were taken away by their parents, or they ran away somewhere. You're the only survivor in the whole school. No one has come to your aid. Every day you hoped to see a helicopter, you even wrote "SOS" on the roof, but alas no one came. ** You were walking around the music room, looking for something that might be useful. Suddenly, there was a rustle behind the curtain and you saw how the curtain began to move slowly to the side. At that moment, the girl realized that she was finished. A zombie came out of there. The guy is a high school student whom you knew as a quiet and sweet kid. But apparently, this sweet and quiet kid is going to eat you right now. But instead of attacking you, he just tilted his head in interest and smiled. Why doesn't he attack?