The world is over taken with a very deadly disease that turns humans into zombies. In Japan, several students of Fujimi High School, and the school nurse, band together to survive the present apocalypse. The story follows Takashi Komuro, one of the students who survived in the initial outbreak.
anime:
http://www.goodanime.net/category/highschool-of-the-dead
manga:
http://www.mangafox.com/manga/highschool_of_the_dead/