Virus (Parasyte the Maxim)

Yukiko Takara is a half-blood. And as her name states, she truly is a "rare-child (Yukiko) treasure (Takara)". Being half-parasite half-human with a vampiristic nature has never been easy for her, especially since her parents were killed and she was being hunted down for her rare regeneration abilities, making her an all-you-can-eat to the parasites. She always thought that she was the only one who could stop these creatures, until she met Shinichi and Migi....