A Female Vampire?

Alex observed the mutant girl, noticing her vacant gaze and the eerie green tint in her pupils. "Our research has found that this mutant's intelligence seems to be at the level of a five or six-year-old child," Xia Xuan continued with her earnest explanation. "Also, she hardly eats any food; her preferred sustenance is fresh blood! Her self-healing ability and physical constitution are also exceptionally strong."

"A preference for blood?" Alex frowned. "Seems like not only does she resemble a vampire in appearance, but her habits are also similar to those of vampires."

"We actually refer to this kind of mutant as a vampire-type mutant," Xia Xuan said, looking fearfully at Alex. "Furthermore, we've discovered that mutants are not just of this one type; it seems each category of mutants has its own uniqueness."

"Before, the Taizi Gang had encountered a mutant with cat ears."