Dungeon Farming: Reborn as a Dungeon Lord, cultivating life inside a cave. Dungeon Farming

One day I woke up inside a cave.
There were luminous crystals in the walls, one huge crystal in the center of the room and a collapsed tunnel leading to God only knows where.
I tried digging the entrance but human hands are not exactly the best tools for digging and there were no other tools around, so after a few hours of useless efforts I gave up.
Time passed and nothing changed, but instead of getting weaker and weaker with the passing of the time, I got stronger. I felt no hunger, no thirst, I didn't even get sleepy.
"Can somebody tell me what the heck is going on!?"
And then, I got the answer.

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Quick summary:
The story is about an archaeologist guy who wakes up in a cave and discover he is now a dungeon lord. The story progress as he finds out more about his position, how the dungeon works and their place in the present world. Through the story he creates a farm in his own dungeon, summon some creatures to help him out, develops a business relationship with the outside, learns some magic, discover some hidden truths of this world, meets many people, make some friends and some enemies and eats as many turpins as he wants without ever getting fat.

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5 chapters per week + bonus IF I have time...
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The cover image is a royalty free photo, taken from the site www.nicepik.com

https://www.nicepik.com/people-inside-cave-lanzarote-dark-light-bill-green-plant-hole-output-tunnel-grotto-free-photo-820046