Is Immortal Cultivation Flawed? I Use My Lifespan to Become a True Immortal?

[No heroine]

Chen Shou opens his eyes and discovers that he has transmigrated to a cultivation world.

From the start, he is sold to a mine to dig for ore, where he happens upon a cultivation technique.

What do you mean cultivation has a flaw? I can increase my lifespan without limit?

I’m going all in!!!!!