I was but a traveler in a foreign land, with no intention of becoming immortal.

...

After cultivating in the deep mountains for twenty years, Master sent Brian Carter down the mountain to witness demons, monsters, and ghosts, to experience the myriad facets of life, to seek out famous mountains and great rivers, and to find the legendary immortals, saying that was the true path of cultivation.

Unexpectedly, after traveling across the land, the immortal turned out to be myself.