Sienna listened carefully to Grandpa Kun's explanation before giving a slow nod, her fingers lightly tapping the armrest as she silently calculated everything in her mind. The Black Waste was not a place where elegant machines could stand safely for years, nor was it land where one could afford to pursue perfection at the cost of practicality. After organizing her thoughts, she raised her head and asked, "Mister Kun, do you know how much oil an animal-powered press can produce in a single day?"
Grandpa Kun answered without hesitation. "Under ordinary circumstances, one animal-powered oil press can extract roughly one kilogram of oil in a day, but that figure can only be achieved if the machine works continuously without interruption from dawn until the following dawn."
Sienna nodded thoughtfully.
