Heaven, by Mieko Kawakami.
I think this book’s objective fell somewhere between why bullying is wrong and why the concepts of right and wrong are entirely subjective. I think it meant to communicate how a high volume of absolutes, if we take the time to deconstruct them, are largely impressionistic and can be molded into what we need them to mean at any given moment. The plot played with the notion that perceived weakness is actually insane strength; that the bullied have more control over the bully than what onlookers can grasp; and how everyone, always and no matter what, operates in their best interest at any specific moment (thus eschewing the idea that certain actions are bad).
I think this book is encouraging readers to always consider context? If you can’t tell, I’m still trying to figure it out.