>>282924668
Yangire isn't really the right term. They're not obsessed with anyone nor are they even "bad" people. They're just deeply mentally unwell.
Spica definitely has some form of ASPD. She's a Dexter-esque serial killer who hunts down other serial killers out of disgust, but she can be a kind person outside of that.
Leah is genuinely a sweet heart, but she's deeply traumatized and plagued with survivor's guilt over something that happened in her childhood.