After the Red Rain by Barry Lyga

In a dystopian future after the "Red Rain" depopulation event, factory worker Deedra Ward meets Rose, a plant-human hybrid who enters Ludo Territory. Their friendship draws her into government conspiracy, attempted sexual assault by the Magistrate's son Jaron, mass violence, imprisonment, and the revelation that workers have been building genocide machines.

This book’s main concerns are; body horror (significant), drugs (use/abuse/drugging), dubious consent, gore (significant), horror, murder, non-sexual nudity, oppression, sexual assault (attempted), sexual activities, sexual dialogue, and violence.