Advance Space Farming

In an era with abundant resources and vanishing dungeons. livelihood and production class are detested by the attack-type hunters. They were labeled as the "burden of the society."

But when the very last dungeon was conquered, the end was not in sight. Everyone received a notification [Tutorial Over] on their screens. The despair and deaths embraced the world just like 15 years ago. The prideful hunters now begged for help from the people they detested so much. Instead, they had become useless without those classes.

Cosmos Altrice, by chance, claimed ownership of the only Ex-rank item [Prism Ring of Life]. His luck finally arrived, but he died. While on his journey to recover his physical body, he had become the known NPC of the dungeons that sell the in-demand alchemy, forging, and cooking materials for a very cheap price!

A certain hunter said while checking the bark of Elven Starwood on his palm: “Didn't this cost 250 million dollars online?”

Not only selling, but he also offered to unlock their class potential at a cheap price, and also accept disciples to teach alchemy, forging and even cooking?

"HUH?!"
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Author's Trivia:

This plot is originated from my dream that happens one afternoon. And I think this is the only novel that I didn't struggle giving a name.