[No! You can't. Only the things you buy from the shop can be paid in demon cores.] The system denied.
"Alright." Max sighed and then asked, "Tell how many demon cores I need to collect to pay the previous debt?"
[Hm? Let's see. The demon cores of an early, middle, late and peak stage two-star demon are worth 1000, 1500, 2000 and 3000 shop points or lust points, respectively. In the case of three-star demon cores, they are worth 10,000, 15,000, 20,000, and 30,000. As for the four-star cores or higher, I believe telling that to you now would just be a waste of time.]
[Now, since you bought a grade four vitality pill for that little girl Rima which was worth 400,000 LPs and agreed to pay double, it's 800,000 and a Foundation healing pill which was worth around 100,000 after doubling the price, it's 200,000. So, in total, you need to pay a million SPs.]