Tagline: Ayumu is a zombie who wants a regular life. One day, he crosses path with a Magical Girl, and his life is forever changed when he dons the Magical Girl outfit to become the world's first cross dressing, Magical Girl? Zombie.
Kore wa Zombie Desu ka? (Is This a Zombie?) is a franchise that is originally a light novel series, and it was created by writer Shinichi Kimura and illustrators Kobuichi and Muririn. The series spawn multiple adaptations: five manga series and two anime series. The manga is produced by Fujimi Shobo. For the anime, both seasons are produced by Studio Deen and directed by Takaomi Kanasaki. The first anime season is legally licensed by FUNimation.
Ayumu Aikawa is a lazy teenager who wanted a normal life, and when he meets a beautiful, silver haired maiden clad in iron, Eucliwood Hellsythe, and befriends her, he goes home where he gets murdered. Eucliwood resurrects Ayumu as a zombie using her necromancer powers. Now, he lives with Eucliwood and goes to school without revealing to anyone that he is a zombie. As he goes to school, he searches for his killer. One day at the cemetery, he encounters Haruna, a Magical Girl, who falls from the sky and on top of him. Ayumu's life gets crazier when Haruna and busty vampire ninja live with him.
The sunlight hating, cross dressing, Magical Boy who has fantasies about Eucliwood calling him, "Onii-chan." He seems to get in troubling situations with Haruna and Seraphim who sees him as a pervert.
Eucliwood (AKA Yuu) is a quiet, silver haired necromancer. Others see Yuu as the Harbinger of Death, but Ayumu sees her as a close friend and possibly more. Unable to talk due to her powers, she communicates with a notepad.
*Note: She is voiced by many Seiyuus due to Ayumu's fantasies.
Haruna is an energetic, flat chested, Masou Shoujo girl with a passion for inventing things. After being stripped of her magic, she lives with Ayumu and teaches him the way of the Masou Shoujo. Her specialty is cooking fried eggs that look like gold!
She's a busty, vampire ninja who loves saying Tsubamegaeshi with her attacks. Her favorite word to called Ayumu is dung beetle.
She is another voluptuous, vampire ninja who loves Tonkotsu Ramen soup and uses it as a weapon. She belongs to a faction opposite of Seraphim. She goes by Yuki, Maelstrom, and Tomonori.
She is the only normal girl in the series, and she has a crush on Ayumu.
She is a vampire ninja and the superior of Seraphim. She is a conservationist who upholds traditions with utmost priorities.
He's Ayumu's best friend who is a super pervert. He doesn't know that Ayumu lives with 3 beautiful ladies.
Kore wa Zombie Desu ka? is for older audience due to graphic violence and abundance of fan service scenes. It's a show for those who love the supernatural themed harem. Don't take the story too seriously for the show. It's a comedic series that puts an emphasis on its ladies and male lead but mostly the ladies.
To add more information about the story, the difference between season 1 and season 2 is that season 1 has the element of mystery and focuses on the relationship of Ayumu and Eucliwood while season 2 focuses on the rest of the girls.
The anime and manga have different art styles. If you love big boobs and older female character art, go with the anime. If you prefer younger female character, go with the manga. The manga has more fan service focused on Haruna while the anime has more fan service towards the bustier characters such as Seraphim and Yuki.
Story-wise, I only read the first 2 volumes of the manga (illustrated by Sacchi). There are some minor changes such as how Ayumu met Seraphim. The anime has an exclusive scene where Seraphim fights Ayumu. The manga does not have the scene. For the most part, the manga and anime has the same storyline. However, I assumed the manga is ahead of the anime since the anime's season 2 just set up things.
It's up to you. The best way to decide is to watch both the first episodes in sub and dub. The weird altercation to the dub is the use of Magical Garment, and it ruins the theme a bit.
(This is the 2nd season trailer for the video above).