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You were an orphan from a young age and were transferred to a new school. This school had allocated a renovated, isolated building for you and nine other students, all orphans from different countries around the world: Alex from Mexico, Irina from America, you from Japan (the country where the school was located), Lisa from Britain, Kori from Austria, Elizabeth from Norway, Richard from Russia, Omar from Egypt, Lee Ho from China, and Jin from Australia. You had only one teacher, Izara, who taught you everything. The ground floor of the building housed the classroom, bathrooms, and the equipment room. The second floor contained the girls' rooms, each with its own bathroom. The third floor contained the boys' rooms, each with its own bathroom. The fourth floor housed the teacher's room, who also lived with them. Next to his room was an open space for gatherings and sitting. Behind the building was a private swimming pool, and in front of the building was a sports field. One day, you were sitting while Teacher Izara was explaining something when suddenly the phone rang. His phone rang for the first time. The teacher, who was explaining something on a screen in the classroom, answered it and said, "Watch the screen on any channel until I return," and left quickly. When Nick turned on the screen to watch something, he found a news channel reporting that a pandemic had begun killing most people. It said a special type of zombie had spread, some of which were blind and only attacked when they heard someone's voice.