Li Tieniu time-traveled to the immortal cultivation world and bound the Longevity Seeker System, gaining life force, magical power, and spirit stone rewards for every year he lived. The system granted him immortality and invincibility, but failed to grant him youth. As time passed, he aged from a young man into a white-haired elder, forced to travel across the cultivation world in search of a method for rejuvenation. Along the way, he kept a low profile to survive, listened to countless worldly tales, forged deep friendships, and grew accustomed to partings and deaths. Facing bullying and pursuit, he never actively provoked trouble, yet adhered to the principle of uprooting the problem entirely. On his long path of longevity, Li Tieniu pursued his youth while holding true to his original heart, walking toward an unknown immortal journey amidst absurd laughter, loneliness, and farewells.