Limited Disintegration

The orphan Gao Mingyuan has always had the desire to save the world and become a world hero, so he wrote a letter to the future and hid the letter deep in the corner of his house, saying that he hoped that people in the future would give him a chance when they saw it. As a result, a few days later he actually received high-tech from the future, but this high-tech product was of limited use. The mission given to Gao Mingyuan in the future was to use these limited resources to save multiple worlds. Can he complete this task and become a world hero? Let's wait and see!