"Can't Enter The 11'th Floor?
How did the system get a potion without an alchemist? Did the system kidnap some alchemists?
You see, the alchemist's might was on par with shamans due to how scarce they were, yet they're more useful for other ability users compared to the shamans.
Even more so when all the human alchemists in this world joined a sole Alchemist Guild spread throughout the world.
None of the alchemists joined a mafia family or other forces.
With all of them gathered in one organisation, they monopoly the potion distribution, becoming one of the largest forces on par with the mafia society.
That's how powerful an alchemist was and just how priceless a bottle of potion could be.
Even the influential Walter Family couldn't afford to offend a lowly alchemist with only one special ability.
An alchemist with one special potion-making ability was actually as precious as an ability user with 2 to 3 abilities!