In a world of werehumans who shift between beast and skin by the age of three, a woven basket sits abandoned in the heart of Black Leopard territory. Inside it trembles a small pink rabbit, tears streaking her fur, waiting for the jaws that should end her. Vivi is eighteen years old and cannot transform — a failure so absolute that House Ravien sealed her in that basket and left her for the carnivores. Instead of death, she finds Ahin Grace, heir to the Black Leopard Clan, staring down at her with eyes that promise something far more complicated than a quick meal.

Ahin is all predator instinct and childish whim wrapped in one lethal package — a "stab first, think later" noble whose pheromones alone can crush the weak. His first command to the sobbing rabbit in his palm is absurd and absolute: cry more, or be eaten. So begins a captivity where Vivi bounces between terror and bewildered attachment, a tiny pink creature navigating a manor full of leopards who've never housed anything they weren't meant to devour. Between Ahin's possessive whims, the Black Leopard Clan's suspicion over whether she's truly a werehuman, and the looming question of why her transformation won't trigger, survival isn't just about avoiding sharp teeth anymore. It's about figuring out whether a rabbit who can't become human deserves to be anything more than prey — or whether a certain temperamental heir has already decided she's his to protect.

Also known as: 토끼와 흑표범의 공생 관계, Tokki-wa Heukpyobeom-ui Gongsaeng Gwangye, The Symbiotic Relationship Between a Rabbit and a Black Panther, A Symbiotic Relationship Between a Rabbit and a Black Panther.