Giant Fish Survival: I Started with a Backstroke Fish

[No System] [No Golden Finger] [No Heroine] [Behemoth Evolution] [National Survival] [Slight Distortion] [Survival Priority] All the people traveled to the world of Leviathan and entered the muscle stomach of a juvenile giant fish to survive. Humans and the giant fish coexisted in symbiosis. The giant fish will take the initiative to swallow the supply box to help human development. Humans also need to assist the giant fish in cleaning barnacles, parasites, stomach polyps and other foreign objects. Our protagonist Lin Fan, the giant fish he lives with is called Backstroke Leviathan, also commonly known as the dead fish... It contains a small amount of distortion elements, and the protagonist is living a difficult life. It is neither a vacation in another world nor a relaxing novel.