Interesting, even as an adult, she couldn't run away from her insane cultist mom. Infact, it appears that she went to the founder's funeral which is unknown if it was her own decision or not.
Did she go to that city and realized that nothing happened there, or did she blame Punpun all this time while not going anywhere?
She is legit crazy, though. I thought that as a child saying "i'll kill you" wasn't really much of importance, but apparently she really did mean it, and now it seems like she is going the route of 'I'll ruin you' which Punpun went when he attempted to assault her, what with him trying to set himself free from her, and she spinning her webs all around him.