As previously wrote, read 地球星人 by Sayaka Murata and finished reading.
A bit difficult for me to write a review, as had several phases while reading:
First, felt “yet another book by Murata-san” challenging the accepted society rules. Why does one need to play by society rules, get married, have children, work, transfer the genes to another generation that will do the same.
Then, it became a story of a girl that is abused, while society does not protect her but rather judge.
Last part went crazy, but was it really crazy, or just the writer’s way to shake, to create a feeling of disgust while I was thinking the 3 people are actually trying to establish a new culture, which is not that different from ours.
The heroin struggles with sexual desire, discussing reproduction.
Do not want to disclose the story and ending, but I was a bit disappointed after reading コンビニ人間.