Is F Class a Waste? the System Refills It for Me!

Traveling through a different world, he became a student with excellent grades and ranked first in his class in the cultural examination. However, this is a world of high martial arts where alien beasts are rampant, and no matter how good the cultural achievements are, it is of no use. If you want to enter a martial arts university for further studies, you must awaken D-level or higher abilities. As for Su Ziye, what he awakened was an F-level space power. Everyone concluded that he was a waste in his life. But no one knew that he quietly activated the system: "System! Fill it up for me!" As a result, the power level changed: F level → D level → C level → B level → A level! Space perception: 30 meters → 50 meters → 100 meters! He stood alone in the rain curtain and raised his hand to cause the entire space to collapse.