Fantasy: Become Invincible from a 100-Year-Old Veteran

The seven kings guard the border, children wear armor, and hundreds of millions of loyal men burn their remaining strength, vowing not to surrender to the death. Yu Fan traveled through time, survived a hundred battles, and finally activated the super body refining system before his death. Endless body refining, the sky cannot be destroyed, the earth cannot be buried. After refining his body hundreds of millions of times, he shattered the underworld with one palm and shattered the nine heavens with one punch. Whether it's the Underworld or the Immortal King, they're all smashed to pieces with one punch. Asking who in the world can be undefeated, who is claiming to be invincible? Yu Fan said: I am invincible in the long river of time. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.