Shikabane Hime: Kuro

Both Have a lot to to of battle to protect someone special and has a lot of creatures involve I recommend this if you like Monsters 

They both have a similar bad ass girl that hides her emotions for her male sidekick while they kicks ass. If you enjoyed the harsh reality of claymore but adored the occasional 'romance' so to speak then you'll really take a liking to Corpse Princess a.k.a Shikabane Hime 

both deal with demons, and fighting them both have double pistols both have a male protagonist  

a world that full with magic e intrigue and spiritual thing,in order to defeat their enemy the main character must make a pact with ghost that way is similar with shikabane series that the main character must a make pact with corpse.In OP&ED the song is also song by the same actress (Angela)  

both involve contracted people (girls needing to make a contract with a boy and chasing after her own kind) pandora hearts just started i can't pinpoint others similarity right know but i'm potitive that the on going episodes will show more so if you enjoyed shikabane hime you may enjoy this as well  

Both are supernatural high school shows in which a high school boy with powers, accompanied by various girls who also have powers, including one unsociable girl with a massive gun, save the world against demonic creatures, with an intricate and dark plot unfolding in the background of their episodic adventures. 

Both anime are directed by Gilgamesh's Masahiko Murata, and thus share the dark-shonen genre, with Jinki:Extend being more mecha-oriented. They also share a lot of themes, the same script structure and have the same kinds of characters. While obviously not being exempt of defaults, I would say that both series are heavily underrated and if you can overlook their over the top plot as well as sloppy artistry and animation, you're in for two surprisingly enjoyable shows. 

Female fighters who have a male partner for support. In both cases, the females are certain powered entities who have a difficult fate potentially awaiting them, and they share a link to the first of their kind. 

Once again, like the prequel, both series deal with undead making a contract to kill undead in exchange for something precious (in Shikabane Hime, the door to Heaven; in Zombie Loan, the life they lost)