Genres:
Action, Supernatural, Shounen, 
Horror, Ecchi

Highschool of the Dead, known in Japan as Apocalyptic Academy: Highschool of the Dead (Japanese: 学園黙示録 HIGHSCHOOL OF THE DEADハイスクール・オブ・ザ・デッド, Hepburn: Gakuen Mokushiroku Haisukūru obu za Deddo), is a Japanese manga series written by Daisuke Satō and illustrated by Shōji Satō. It was serialized in Fujimi Shobo's Monthly Dragon Age between the September 2006 and May 2013 issues, but was left unfinished following Daisuke Satō's death in March 2017. Fujimi Shobo and Kadokawa Shoten published seven tankōbon volumes from March 2007 and April 2011 in Japan. Yen Press published the series in North America. The story follows a group of high school students caught in the middle of a zombie apocalypse.

A 12-episode anime adaptation, produced by Madhouse and covering the first four volumes, aired in Japan from July 5 to September 20, 2010. Madhouse also produced an original video animation (OVA) episode in 2011. Sentai Filmworks released an English dub of the anime series and OVA on DVD and Blu-ray in North America.

Plot:
It happened suddenly: The dead began to rise and Japan was thrown into total chaos. As these monsters begin terrorizing a high school, Takashi Kimuro is forced to kill his best friend when he gets bitten and joins the ranks of the walking dead. Vowing to protect Rei Miyamoto, the girlfriend of the man he just executed, they narrowly escape their death trap of a school, only to be greeted with a society that has already fallen. Soon, Takashi and Rei band together with other students on a journey to find their family members and uncover what caused this overwhelming pandemic. Joining them is Saeko Busujima, the beautiful president of the Kendo Club; Kouta Hirano, an otaku with a fetish for firearms; Saya Takagi, the daughter of an influential politician; and Shizuka Marikawa, their hot school nurse. But will the combined strength of these individuals be enough to conquer this undead apocalypse?

Recommended by: Me

Review:

One of best zombie anime I'd watched, it was more ecchi than anything though.

Story is amazing, characters are weird, smart and really cool.

However, if you play attention in story, you can see moral codes of everyone slowly falling apart.

It would've have second season, however,

High School of the Dead Manga Creator, Daisuke Satō Passes Away at 52.  due to ischemic heart disease on March 22.

So, Anime is on Indefinite hiatus along with manga. So, its left on cliffhanger.

But it is pretty good anime to watch on Halloween or whenever.