The End of the World: Become the Ancestor of the Blood Clan at the Beginning

Yoruichi traveled to the post-apocalyptic world. He originally thought that he would become the top of the world through his own efforts. But he didn't expect that the system would suddenly awaken, making him the only ancestor of the vampire race in the world. As a result, the system's task of becoming stronger is even more fucked up, as long as the vampire population increases. Both assimilation and reproduction can be regarded as increasing the population. For the sake of the system's mission, Yoruichi could only reluctantly start using blood to create the true ancestor. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.