Cultivation, I Only Talk About Cost-Effectiveness

Modern social beasts travel through the world of immortality and discover that their golden finger is not a combat system, but a unique perspective that can quantify everything (including skills, elixirs, and emotions) into "cost-effectiveness." He does not strive for momentary enthusiasm, does not cause unnecessary trouble, focuses on "picking up mistakes" and "investing", and leveraging maximum profits at the lowest cost. In the world of immortality where everyone pursues "defying heaven", he has blazed a strange path of "becoming an immortal cost-effectively".