खरं तर

there's a kind of irony in Sayaka Murata's Earthlings || the book is narrated by the protagonist who has a really weird world-view, to the point where you could objectively say she's delusional. but as the story develops, you come to understand this world-view and to sympathise with it

the irony lies in the fact that, though she - Natsuki - believes her world-view, the reader recognises the strangeness of it and also understands, through the narration of the story, why Natsuki thinks the way she does and what is actually happening. There's a duality. Natsuki narrates events in terms of her world - so you know how she sees things - but it's also clear what is really happening, and the two are very different. 

the beauty of creating fictional worlds is that things that we would call delusions or some kind of mental aberration in the real world can be accomodated, entertained and explored. by its nature, a story is a kind of delusion. we know the story is not true, but we suspend our disbelief, so the story has a kind of reality.

our own personal world is, in a sense, a fiction.