I personally enjoyed the story and message it was trying to send. Stuff about your self-worth being important and teenage pregnancy being a huge issue. I would say that this had been a lot better if the author actually had more time to flesh out the characters and their relationships with one another.
Kokoe for example is incredibly confusing to me, it kinda felt like she did this complete 180 in personality when she found them. It didn't really strike me that Kokoe even have any feelings for her father, let alone do that crazy shit with the infiltration on their room. It felt very unnatural. The thing is though, she actually had some potential to be a great ass character, especially with her stabbing scene. If only we actually got to know more about her so that the scene would be more impactful.
One more problem to me is the ending. Why does the MC just get away scott-free? Tomoko somehow was able to reverse her age and look like that at 50. Kokoe somehow got to be a celebrity even tho she has a criminal record and has a history of extreme bullying. FMC was somehow able to provide for her child on her own at the ripe age of 15-19 without a fucking highschool diploma. While they're portrayed as happy, they're also completely isolated as she doesn't have anyone else, not even the MC. Maybe that's the point though, all I know is that I don't like it. At least put the MC in prison or something.
I would recommend it for the premise but the lack of chapters really hurt this a lot in terms of character development. I would say to just try it out and see for yourself.