Ji PingAn really hadn't imagined that his comrade-in-arms would have such a big business in the Mortal Realm.
Not to mention anything else, just speaking of the electricity generator, he knew that quite a few people were using them.
This was thoroughly a product of the Mortal Realm, but that didn't change the fact it was very useful: including the lighting fixtures, a whole set cost no more than five Spirit Stones. Once night fell, the lights would keep a house bright and prosperous-looking.
Before this, he had no idea how much gold the electricity generators sold for, nor had he cared, since gold wasn't a currency in the Cultivation World and had no exchange rate with Spirit Stones.
However, according to the black market, one Spirit Stone could be exchanged for roughly five hundred to a thousand taels of gold.