The problem with top-grade long energy is that there's demand but no price, supply can't meet demand. When a good upper grade emerges, it's basically absorbed within the circle of acquaintances, and if you want to acquire a strand that suits you, you have to spend a lot of time and effort.
[Weighing Qi: Equivalent Floating Tower, Level Seven Hanging Scale. Cutting the feet to fit the shoes, exchanging my treasure for yours.]
This effect, this purpose, instantly hit Ran Zhongyi's heart.
Later, let dad make an effort, and borrow from colleagues, there's definitely a chance to trade for it.
"Why would I fool you? Keeping it for Brother Ran, not charging interest."
