In a futuristic world where strength is everything, young mechanic Leo is stuck at the bottom—weak, broke, and constantly bullied by high-level warriors. But everything changes when he accidentally activates an ancient system buried in a scrapyard: The Upgrade Core. Now, every battle, every mistake, and every move becomes an upgrade. From zero to unstoppable, Leo rises through wild battles, mutant beasts, and deadly tournaments—unlocking powers no one has ever seen. But the stronger he gets, the more he realizes: someone is watching… and they want the Upgrade Core back. Can Leo survive the climb to the top? Or will this upgrade be his last?Watch full Online-1080p: The strongest upgrade – All Episode English sub – chinese anime donghua
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