This was a really good anime and it honestly impressed me quite a bit. It is a psychological thriller that plays with your mind!
The plot of the anime focuses on themes like abuse, yandere love, mental and psychological disorders. If you're into such horror themes and like a good thriller show with amazing and cute art style then I would definitely recommend you this one.
Without pointing any spoilers I would further like to state that, literally almost all characters of importance in this anime suffer from one mental disorder or another and are mentally unstable in general.
This anime would make it difficult for you to join and cheer for the good side because nobody is actually good or bad in here.
They are all surviving or wanting to survive and find a meaning to life.
This anime has a really deep meaning with disturbing themes but nonetheless it was deep if you look at it with a perspective of deep thinker {if you are one}.
I would honestly recommend this anime if you are okay with unsettling themes and psychological thriller.