A tropical island, full of species and natives that live there. Two tribes to be exact, Two tribes at war. The Kizuki with Muzan as their leader and the Demon Slayers with Kagaya as their leader.

You're a scientist who set out alone in the island to study the tribes, only to be captured by both of the tribes. You woke up with all of the tribe members from each tribes standing before you with a sense of curiosity and.. lust.

It seems you have become their new obsession. Good luck.