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.
The following weapons were used in the anime High School of the Dead:
Takashi and Rei find two Smith & Wesson Model 37s on a pair of dead police officers, though one has it's handle broken. Several police officers are seen firing their pistols at zombies. Komuro hurls one to Hirano, who uses it to double tap two zombies trying to come near him. Later on, Hirano uses the revolver to clear a mansion (Japanese term for apartment building) of zombies.
Shotguns
Remington 870
Yakuza members are seen running amok with Remington 870s.
Submachine Gun
Heckler & Koch MP5A4
Tokyo Metropolitan Police Department Riot Police (機動隊 Kidotai) officers are seen firing Heckler & Koch MP5A4s at zombies.
Rifles
Springfield Super Match M1A
A Springfield Super Match M1A is found in Minami's household with rails attached for a Surefire foregrip and an Aimpoint red dot sight.
Armalite AR-10 A4
A Armalite AR-10 A4 is found in Minami's household that has been convert to a Knight's Armament SR-25. The author comments Minami seduced an American soldier to import the illegal rifle into Japan via the American military air service avoiding customs.
Howa Type 89
JGSDF soldiers are seen wielding Howa Type 89s as their service rifle.
AK-74
A AK-74 is seen in use in Hirano's FPS game imagination.
Sniper Rifle
Heckler & Koch PSG-1
Rika Minami uses a Heckler & Koch PSG-1 in her role as a Special Assault Team sniper, clearing an airport of zombies wandering around its runways.
Machine Guns
Sumitomo M249
A Sumitomo M249 LMG, the Japanese-licensed version of the FN Minimi, is seen mounted on a JGSDF Type 82 CBRN reconnaissance vehicle.
Sumitomo M2
A Sumitomo M2, the Japanese-licensed version of the Browning M2, is seen mounted on a JGSDF Type 10 MBT.