Hanging the Pot to Ask About Longevity

[Host that meets the conditions detected: Renxin is on the verge of extinction, blood sacrifice to ancestral marks. [The ancient medical inheritance system is being bound...] [Binding successful. Host: Tang Zhen. [Initial merit calculation: saving a dying life*1, merit +10. [The system mall is opened. The cultivation realm bar is unlocked. Life span: 28/75 (can be extended).