Scale Cage

Ethra, with a constant gravity of 1.5 Times, civilization is locked in rock tunnels and survives on geothermal heat. The canopy above our heads is not the sky, but a cage created by the high-dimensional "creation civilization"; the history of the development of our civilization is just the observation data in the opponent's experimental log. Kegra, the youngest rock surveyor in Ethra, was raised by his mentor Lake since he was a child. He holds the cross slate left by his parents. What he wants in his life is to discover the truth about the planet and lead his people to see the real starry sky. Until a restricted area signal incident, he received a five-word warning from his future self: Don't trust Lake. Resonance retrospective reveals the truth: the mentor who raised him for twenty years was actually the first-generation observer installed by the creation civilization, and he has been the "optimal breaking sample" raised by the other party since his birth. When faith collapsed, Kegla used the accuracy of a surveyor to decipher the rules of the cage and awaken the fire of resistance across the planet. He originally thought that breaking open the sky would mean freedom, but in the core of the earth left behind by his mother, he glimpsed the terrifying truth of the experimental field in the entire universe. Holding the key to the mother core, what he wants to explore is the scale of the entire universe's cage.