I Am Immortal, and in a Crisis I Instantly Become an Invincible Immortal

He was a child who would never grow up, blessed with an immortal body and supreme power, yet he wandered the world for just one reason: to find the person who had once given him his first taste of warmth. Through a hundred years and thousands of miles of lonely wandering, he saw a glimmer of light in a ruined temple amid the snow, lived in a mountain village warmed by its hearth, met travelers who found their way back, and heard the Zen teachings that awakened him to the meaning of eternal life. The world held both good and evil, and the road was full of danger. When bandits ran rampant and wicked cultivators wreaked havoc, whenever the weak were bullied, he became a white-robed immortal and subdued evil with a raised hand, protecting the good with a bow of his head. He didn't understand the mysteries of the Great Dao. He only knew to repay kindness. He didn't seek immortality for its own sake, only to remain true to his original purpose. From wandering in bewilderment to finding a place in his heart to call home, from being alone to caring for all humanity, he walked the longest road with the purest tenderness and used the most invincible power to protect the simplest warmth. This is the story of an immortal's cultivation in the human world, a tender reunion spanning the ages, and a long song of warmth, protection, and an undying devotion to one's original purpose.