Immortality Verse

An ordinary man, accidentally found the fate of immortality and embarked on the road to heaven. After going through all the calamities and defeating all the heroes, he finally became invincible throughout the ages. He once thought that reaching the top would be the end of the story. Little did he know that under the immortality, old things would wither and the mortal world would change, leaving him alone in the long river of time. When the whole world is a thing of the past, when invincibility means eternal loneliness, at the end of this eternal road forged with blood and fire, is it the other shore, or is it an eternal cage?