I Became an Immortal, Only to Be Told the Immortal Realm Doesn't Exist?

Chu You transmigrated to the Ancient Profound Continent ten thousand years ago.

Ten thousand years later, he finally cultivated immortality and became the continent's greatest expert. But then his master told him that the Immortal Realm had long ceased to exist, and that immortals could not possibly exist in this world.

Chu You silently looks at the immortal energy spilling onto his master's face.

“Then what am I?”