Highschool of the Dead(2010)

A mysterious and deadly disease is spreading throughout the world, causing the catastrophic death of the human race and increasing attacks on humans by the walking dead. In Japan, several high school students and a school nurse team up to escape from Fujimi High School shortly after their high school is overrun by zombies. The people of this group intend to find out who or what caused this disaster and at the same time they have to fight with all their might to survive in this hell.