In the other world, it is called the "Philosopher's... Stone."

A soul that had been cycling through the wheel of reincarnation was suddenly pulled out by a novice goddess who created another world, as if by lottery. As the bewildered soul stood there, what the goddess wanted was not: "Defeat the Demon King as a hero!" Nor "Do something about the world to kill time!!" Nor "I only needed it for soul management purposes, so I'm not really asking you to do anything specific?" But rather: "Why don't you use the knowledge from your world for the development of my world?" Along with words that sound just like some company's recruitment pitch, the soul is half-forcibly dropped into the newborn alternate world, and while sighing, decides reluctantly to manage the world's operations, thinking "I don't want to be cursed either..." However— "Not even a living creature... it's an inanimate object, isn't it?!" This is the story of a certain stone that, from the age of primitive mythology, creates a nation and changes the world. …†…†…………†…†… Part Two "I'm Called the 'Sage's... Stone' in Another World —Ranpo's Diary—" (https://ncode.syosetu.com/n3849ey/) will continue with ongoing updates. Thank you for your continued support! …†…†…………†…†… 《Business Notice》 This work has been... adapted into a manga. (sleepy-eyed) It's been adapted into a manga? (double-take) It's been adapted into a manga! (pinching cheek wondering if still dreaming) Currently being serialized on Comic Polka and Niconico Seiga. This is all thanks to everyone who has supported us for so long. While the end is still not in sight, I'm at least relieved to think that I've been able to repay everyone who supported us. If you wouldn't mind, I'd be happy if you'd join us in watching the exploits of the Sage's Stones as they come to life in illustrated form. And finally, let me say one more thing. It's been adapted into a manga‼ (I still can't believe it)