When Hiro Hiyorimi tries to save a beautiful young woman from certain death, he ends up a dead hero himself! However, since the drop-dead girl is Hime, daughter of the King of the Monsters, his "reward" is to come back as a not-quite-living soldier in her honor guard of horror! That means helping fight off the army of supernatural monstrosities Hime's siblings are unleashing against her in hopes of moving up the ladder of succession.

And if facing off with vampires and zombies isn't bad enough, how can anyone be prepared for the REALLY weird ones, like were-sharks, pandas and killer dumplings? This sure as hell isn't the afterlife Hiro was hoping for, but the really sad part is that Hime is the good girl in all of this... or at least as close to good as you can come when you're on the wrong side of the gates of hell!

[Source: RightStuf]

No good deed goes unpunished, so when Hiro Hiyorimi tries to save a beautiful young woman from certain death, he ends up a bit dead himself! Pulled back from the grave to join Hime’s monstrous retinue of servants and sycophants, Hiro must now follow in the wake of carnage and destruction that trails his chainsaw wielding mistress as she battles the various rogue werewolves, vampires, zombies that make her life a living hell! She’s the ghoul your mother warned you about and she wants your body!

[Source: Sentai Filmworks]

Based on a manga by Mitsunaga Yasunori, serialised in Monthly Shounen Sirius.

Hiyorimi Hiro moves to a new city to live with his older sister, but dies before he can find her. He then awakens to a new life as a servant of a Princess of the Monster Realm, who just happens to be employing his sister. Monsters soon appear to attack or pester the princess since she is in line for the royal throne, and Hiro must protect her with his life (and repeated deaths).

[Source: Anime News Network]