Take a look at Lil Qian, then at the mysterious chick at the end of chapter 106. Probably a crackpot theory, but the mysterious chick is the sister of Lil Qian, a revived version of her but is plotting against the humans (maybe briainwashed or her own will by either by being convinced by someone or was her plan the whole time), or Lil Qian never actually died and got close to Zero in order to gauge the human's power, faked her death to get away, and is now plotting, or maybe this is some elaborate plot by mysterious chick, maybe used some sort of teleportation, and using actors or some shit to simulate everything.