For the regular people, gold was the most precious and expensive item, but those who dealt with the Precious-Tree House were mostly Cultivation practitioners, so they had their own valuable items.
The most common monetary unit was not gold and silver, but something more precious than gold and silver: the rare crystal stone.
Jing Jiu knew about the crystal stones, but he didn’t have them. The crystal stones were useful for the practitioners with a lower state than the Undefeated, and its effect was far inferior to the magic tablets he usually took.
Zhao Layue had been provided with the magic tablets from the Green Mountain since her birth, so she had never worried herself with this kind of thing. Looking at Jing Jiu, she asked, "Do you have the crystal stones?"
Jing Jiu shook his head.
Though the manager still remained smiling, his eyes betrayed a hint of contempt.
Jing Jiu took out a magic tablet from his sleeve and put it on the counter.