Yun Zhi had indeed forgotten about the patent fee. The Seek Dao Sect had two main sources of income; one was the patent fee from Hundred Refinement Peak, and the other was the elixir fee from Elixir Cauldron Peak. Both combined could support almost half of the sect's operation.
Each month, the Fifth Elder and the Seventh Elder had to pay a portion of the spirit stones they collected to her, Acting Sect Master Yun Zhi, notably, the Fifth Elder paid several types of patent fees, among which were those that belonged to Lu Yang.
Yun Zhi had overlooked this oblivious.
She flipped through the account book and found Lu Yang's patent fees.
"There are two months' worth of patent fees for the flying car, a total of 110,000 spirit stones."
The flying car, being a recent invention, had yet to gain popularity. The initial patent fee wasn't considerable.
"Let's go to the treasury to retrieve it."