National Destiny: He created his own "Covering the Sky" technique and started by forcefull

When a global survival trial binds contestants to their respective nations, Lu Ran finds himself thrust into the arena with a distinct advantage, armed with deep knowledge of fantasy lore and a rather incentivized starting task: kissing the campus beauty. During the crucial creation phase, Lu Ran defies conventional cultivation by introducing the legendary Heaven-Covering technique. Instead of relying on external spiritual roots, this groundbreaking method taps into the infinite potential of the human body, unlocking the five great secret realms—culminating in the supreme power of the Mortal Immortal Realm. Seven days later, spiritual energy awakens, plunging the world into chaos as terrifying monsters and anomalies descend. While other nations place their hopes in traditional mages and supernatural beasts, global panic ensues as they witness the sheer, overwhelming devastation unleashed by the Dragon Kingdom's champion.