Don't Be Surprised, Other Me. I'm a Vampire Princess Too

Shenyu is a senior member of Kinship, one of the international joint organizations. Entrusted by the organization's Grand Marshal, he has been assigned to this land to contain the worsening zombie virus. Shenyu can switch between his human identity and that of a vampire royal.

But when he transfers to a school on this land, he comes face-to-face with a sword-wielding girl named Shen Xiaoyu, who shares his surname and roughly the same appearance, as if she were the female version of Shenyu.

The girl turns into a vampire princess due to a lack of blood, and begs him to keep it a secret.

Shenyu personally feeds blood to his other self, and also turns into a vampire princess half the size of the other one.

"With me around, you won't go hungry."

"Big sister... is that you?"

Shen Xiaoyu asks in her bloodthirsty state.