The Immortal Platform Realm's First Heaven is known as Human Immortal, marking the true entry into the level of "Immortal."

Though only one tier above the Martial Emperor peak, the gap is like heaven and earth—an insurmountable chasm.

Even an ordinary Human Immortal descending to the mortal realm could unleash world-destroying calamities. The Shenzhou Continent's maximum bearable power sits at the Human Immortal level; anything beyond exceeds the rules it can sustain and cannot manifest.

Xiao Long's Doomsday Starfall, for instance, carried initial explosive force beyond the continent's limit and remained sealed until the blast weakened, dispersing as energy and wreaking devastation.