Zero.

Summary

Zero has been in this world for over 2 million years, primarily in hibernation to conserve energy. After bestowing wisdom upon apes, they have evolved into primitive humans within 100,000 years, a significant change compared to their previous slow development. Zero observes their leader, a strong male, and realizes that while they are intelligent, they still lack the foresight typical of advanced civilizations. Following the primitive savages into an underground cavern, Zero notes their adaptation and living conditions, including a lava river. He refrains from interfering, cautious of altering their evolutionary path.

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