Cruel Fate

Once upon a time a writter wanted to write a perverted sick fantasy about a man reincarnating as a bunny girl in another fantasy type world. However, this God wanted his story to be different than the other isekai stories. He wanted his creation to not just another plain novel about a land filled with harems, typical fantasy tropes, and a complicated magic system. This God wanted something new. And so he proceeded to make the man turned bunny girl's life as miserable as posssible.

TLDR; A deconstruction of a fantasy world where you watch a bunny girl cry.