Fantasy: Sign in to the Immortal Holy Body at the Beginning

In the Nine Star Continent, martial arts is the most respected. The strong man flies into the sky and escapes from the earth, transcending all living beings! The life of the weak is like an ant, and they cannot help themselves! It was a time when hundreds of dynasties were at war, and chaos arose in the world. Jun Buyu traveled to another world and became the dumb ten-year-old prince who could not speak in the Jun family of the Great Yan Dynasty in the Southern Wilderness. He obtained a god-level sign-in system. "Ding~ Sign in to the Imperial City of the Dynasty and get the [Immortal Holy Body]!" "Ding~ Sign in to Sage Academy and get [Perfect Qualifications]!" "Ding~ Sign in to Zhenguohou's Mansion and get the [Nine Hell Barbarian God Swallowing Heaven Technique]!" Ten years later, when the four dynasties were facing great war, Jun Buyu stepped out from under the royal city...