But how does that fit in with what you said earlier, that they were like manifestation of people's suicide thoughts they had after the celebrity killed herself? I can see that it follows the same rules as Paranoia Agent, like how Lil Slugger was brought up by that girl as form of desperation to shift blame from herself for her dog's death and then latter on her life when she was underpressure to make a cartoon based of her dog. But the key factor in that was that she was SO DESPERATE, that Slugger became real. And you can even say it fellow the rules of "Believe in fairies are real to make them real" logic too, as the rumors and followings may have lead to that... but then how did those balloons for Kazuko and her friends came to be? It was one thing to think of them as other head balloons, but as their OWN?!?

The story would have been better if it just ended with the boyfriend hanging
"himself", everything else seems like something from a filler arc. There is still so many questions left unanswered...