Help! I Cultivate Immortality, but It Costs Me Years of My Life

My name is Chen Qingdi, and I transmigrated into a strange cultivation world. Cultivators here don't rely on spiritual energy to advance. Instead, they offer sacrifices to the unknowable “Old Gods” in exchange for power. Talent, spiritual roots, bloodlines... none of them matter as much as the value of the sacrifice you can offer. And I am a collateral clansman with only a little lifespan left, about to be offered up as a sacrifice by my own family. At the brink of despair, I discover a panel that no one else can see: the [Eternal Lifespan Panel]. My lifespan is actually infinite!

[Offer one year of lifespan to exchange for “Body Tempering Realm” cultivation.]

[Offer ten years of lifespan to exchange for the “Lesser Divine Ability: Bloodburn Art.”]

[Offer one hundred years of lifespan to exchange for “A Single Glance from an Old God.”]

While other cultivators cautiously sacrifice monsters and magical treasures just to live a few years longer, I go straight into “wholesale lifespan” mode!

“What? You sacrificed the core of a thousand-year-old demon king and gained cultivation at the Violet Palace Realm? Sorry, I sacrificed a thousand years of lifespan and ascended on the spot!”

“A peerless prodigy, a holy son? Your father is the sect master, and you have endless resources? I'll sacrifice ten thousand years of lifespan to get ‘Word Made Law.’ Even your father will have to kneel and call me Grandpa!”

“An Old God has descended to destroy the world? I'll sacrifice a hundred million years of lifespan and exchange them for [Authority to Replace an Old God]!”

When I use my lifespan as kindling to set the flames of the Dao ablaze, the whole world goes completely off the rails. Immortals and demons from across the heavens, along with the eerie Old Gods, tremble before me. Because they realize that I am the most terrifying, most unknowable existence in this world! Who could kill someone... with an infinite lifespan?