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Supplementary tags: Shota This is a sad era, the void swallows all things, and human beings can only survive in the apocalypse. Some people are establishing a new order in the end of the world, while others are beginning to crave the power to destroy the world. In this chaotic vortex, prisoners are born from the cage. "You can't escape the past, it will chase you. You are just an experiment from beginning to end, an empty prisoner." "Of course, I won't run away from this problem, but... Aren't you a pathetic existence?" "The First Master's puppet..." Who are the ridiculous prisoners and puppets...