This is pretty depressing. Both of them are victims of sexual violence committed by their own parents. While the guy certainly did the wrong thing by abducting her, he is also of unsound mind due to the years of abuse his mother made him went through. The girl is actually rather strong considering she was also subjected to rape by her own father and her mother doesn't even care about protecting her.
This is the author's twitter: https://twitter.com/wspeak1984bro
Also, the manga can be read on paid Japanese websites (with links provided on the author's twitter)
However, in terms of reading it for free online, even if it's untranslated, I couldn't find anything.
I'm interested in the story (even though it's so messed up lol), so I hope someone picks it up.
So this is so weird messed up but interesting. Does anybody know any groups that would consider picking this up (I’m mostly on discord for Josei romance and Shōnen groups). I was so intrigued I ended up getting Japanese chapters because it’s up to 17. This thing is wild but I don’t understand the Chinese or Japanese!