My thoughts. It's not nearly as good as "I want to eat your pancreas" or "I sold my life for ten thousand yen per year". Reason being those two have pretty high quality writing. Which isn't the case here. Why do I bring them up? Because people kept recommending this series in the same vein.
So I get the easy mention is about how she can no longer turn invisible at the end and how she'll prove it to the police, or perhaps why anyone believes her saying she did it.
I don't give a fuck about any of that. Honestly I'm willing to let it slide. Fuck it. I wish the 'invisible thing wasn't an literal thing and more of a concept of her blending into the background but whatever.
What's my gripe with the story? I don't care for the themes and I don't care for what the Author tried to do to make us feel bad for the Father.
Here's the thing, there were plenty of opportunities to do something interesting and complex but nothing fucking happened. The characters also sounded like they were the author speaking directly AT me when they were talking to the main character. Like what the fuck. These characters don't act realistically and it's bothersome.
I don't like the song plotline. Mostly because we didn't reference it at the start, there's an easy way to do this. Have the MC use music as an escape, she goes to CD stores to avoid going home. So then later on when she meets the senpai and likes her music - the senpai then requesting the MC write for her, that the MC actually feels like she would say yes. The current way it's portrayed is weird. If I was the MC I wouldn't write a song for this unknown person. If I was the senpai I also wouldn't randomly ask this passerby to write me a song. Fuck maybe even have the Father take her to a concert (instead of fishing) before he snaps, that way it's therapeutic in a way for her to be writing the song - because it's her coming to terms with her Father. The Father should also have snapped on Mother's day, which could have been an interesting thing on reread to have realized that THAT'S when the abuse started.
The Father-spectre thing was over the top and a little cringey. He spoke too much and said unrealistic things. I get that it's her own projection of him, but man read those out loud, it's awkward as fuck.
I also dislike the whole final arc, she walks around telling everyone and nearly no one gives a shit but the Mother/Grandfather. The entire Grandfather thing is sorta pointless and even brings up the Asian Doctor trope. The interesting bit would have been with the Mother. And why? Let's see we could have had the Father trying to turn a new leaf after the MC yelled at him to stop beating the Mom. The Mom could have been like "Your Father bought you this CD and wanted us to go on a trip together when he came home." So then the MC is like 'oh fuck... maybe he COULD have changed. But I never gave him that chance." There were hints of goodies with the Mom being like "I fell in love with him because he could make me laugh, and we were happy together", but it didn't go far enough.
We could have done even more though! Having the MC meet a foil who also has an abusive parent but manages to overcome it without resorting to killing. This added to my above change hurts the MC a whole fucking lot more, and makes the story more impactful. The MC after all never gave a shit about the Father and even at the end talking to the Grandfather states "I'll hate him forever fuck u too"
Like lmao? Why not have her feeling guilty that the father had the possibility of change and can't bring herself to hate him, even knowing that he may never have changed.
What ELSE could have been done storywise? The obvious thing to me would be the MC wanting to do certain things but ultimately failing before she could do so. I expected a death to happen at some point in the last half of the series but nothing came. The entire stalker incident was weird and I don't understand how he was (A) able to recognize her voice so fast and (B) wanting to kill her because supposedly he heard her voice in his house. Did he even know she turned him in? Did the police tell him? Are they really that stupid?
But then the entire incident just felt like wheel spinning. Nothing much of value occurred throughout the arc. I full expected her to try and murder this guy as well and it go poorly. Hey... maybe that could have been why he knew her and decided to kill her in revenge! I also half-thought the MC might get killed while being invisible and no one discover what happened to her, right as she was going to come clean - that she, like her father never had the chance to redeem themselves.
So yeah lots of things where it's like "Boy that could have been interesting."
The way the story tiptoes around themes and chooses not to go for the gut is infuriating. Overall I don't care for it and I'd never decide to reread this, 90% of the middle of the story just feels like filler.