Vampire Doll: Guilt-Na-Zan Series by Erika Kari, Yoohae Yang, Patricia Duffield

Guilt-Nazan is a vampire aristocrat who was sealed into a cross by Kyouji's ancestor more than 100 years ago. Now Kyouji has revived him--"although he was resurrected as a doll and can only transform into his real figure when he sucks blood from Kyouji's sister Tonae... But when you combine Goth clothes and hot vampires, slowly but surely everyone will start to feel like one big family

"I don't know how to describe my love for Vampire doll other than to say this: Buy it right now, you!" -Newtype Kyoji and Kyoichi may be vicious rivals now.. more"I don't know how to describe my love for Vampire doll other than to say this: Buy it right now, you!" -Newtype Kyoji and Kyoichi may be vicious rivals now...but they were once actually close! What dark secrets in their past resulted in so much hatred and juvenile name-calling? Could their animosity all be based on a simple misunderstanding? Will they be able to overcome the demons that have torn these loving brothers apart? Or will things once again end in the Great Night Veil running off while being called a moron? And what's this--is that the Vampire Lord dressing up in costume for Halloween? Guilt-Na and Tonoe will have to track down a mysterious opponent that may pose a great treat! Hilarious tricks and treats await in this blood-sucking volume of Vampire Doll: Guilt-Na-Zan! less

Guilt-na-Zan's life has never been easy since being put into the body of a female doll but what happens when he wakes up and he's the size of a mouse? And if that wasn't enough, he then has to become a fashion model for some crazy stylists.

Guilt-Na finally reveals the secret behind Vincent's past and explains why she keeps him as a servant. And there are imposters of Guilt-Na and Vincent running around--who are they and what do they want!? Meanwhile, Kyoji makes an unusual request from Guilt-Na for his birthday. Will she be able to fulfill it?"I don't know how to describe my love for Vampire Doll other than to say this: Buy it right now, you!" --Newtype USA

With trouble once again brewing at Tonae's school, it's up to Guilt-na to again go undercover and solve the mystery. But who is the devilish god of death who has appeared at Mitsuhachi Academy to hunt down souls? And what business does he have with Guilt-na-Zan?