Immortal Martial Arts: Hold My Iron Rice Bowl!

Lin Shou'an was born without a martial energy vein and hid a secret power of longevity, yet he struggled to survive in a world that revered martial arts above all. To learn a supreme skill for self-defense, he took a job as a prison guard in the Heavenly Prison. This jail, housing countless martial masters and bandits, became his free-of-charge living arsenal. Hiding in the shadows, he secretly studied the ultimate techniques of various sects, even targeting the mysterious, world-beating power that wore the heavy chains of the prison's deepest level. As years passed and people aged, only Lin, who remained in the Heavenly Prison, kept his youthful appearance while silently accumulating world-shaking cultivation.