"Your drink, Captain."
When Zein got back to his office after his afternoon physical training, Alice had already put a glass on his table. It was a glass of water, but instead of a clear one, the color was that of a liquid metal--a concoction of silver and grey.
It was all according to its name; Silver Needle.
One of the largest dungeon plant commodities, aside from the healing grass for regeneration serum, was the needle plant. The entire plant, from the roots to the flowers, were akin to needles--hence the name. Each of those parts had its own utility and different ways of production.
The bronze-colored needle was commonly made into pills or tablets for stamina recovery, while the golden leaves, which were more effective when they were burned, were made into a mana-enhancement cigarette. Those two were expensive, because cultivating needle plants outside of the dungeon was impossible, and it needed a specific dungeon environment to be able to grow.