Really really fun/hot read until ~chapter 22... Before that, the plot twists and character dynamic changes were so fun, seemingly the relationship getting """better""" slowly. But starting from ~chap22, it got really gloomy, and it was clear it was doomed...
Some things (like Hina'a sudden complete lack of care for Airi's mental health) felt unexpected (Hina's love seemed pure...)... And I feel like considering how the story ended, I didn't get enough of the impression that the 2 mc's were actually that hopelessly mentally ill to kill themselves (why didnt hina just tell airi no one cares about the photos anymore at that point? Thats the thing that was drownijg Airi so bad, they couldve maybe gone home... were they so both so mentally ill they'd rather die?... it didnt feel like it to me...)
Still fun, and will admit the ending did get a visceral reaction from me, so it achieved its goal. The ending is still flawed though...