What is Etlina's Principle about? It centers on a dystopian world where symbiotic organisms transform humans into slime-like creatures. Who is the main character? You are a soldier in an elite unit tasked with navigating this hostile environment and uncovering the truth. What kind of adult content can be expected? Expect graphic sexual encounters featuring transformation, tentacle corruption, and intimate scenes with slime and monster girls. Explore a world reshaped by alien lifeforms where lust and survival collide.