Sansan

When a glorious old civilization was toppled overnight, a strange purple moon rose and thus began the Purple Moon Era.
Damn it! What kind of ecosystem was this? The evolution was messy. Even rabbit bites and plants were not to be messed with. How can one survive all this? Evolve into a Purple Moon Warrior? What did this have to do with the Purple Moon?
What kind of map was this? The Safety Sector? The Floating Domain? The Darkness Port? The Storm Voyage? The True Capital?
The Horror Lullaby List? The resurrection of the Underground Race and the prospering Underground City? The Chaos Black Market that suffused the world? The Bloody Road?
More importantly, one could end up in a bloody slaughter when dreaming and enter the Dream Domain? Fine, this damned era! 

Dark Moon Era

Would he give up on the materials just because of how expensive they were?

Of course not! Even if he had to pay with every coin he had, if he could get stronger, it would be worth it.

However, paying the price without negotiation was not Tang Ling's style. He was ready to argue with the elder for a decrease in price.

Since the elder was the customer service manager, he was not some John Doe either.

After using every trick and negotiation that he could think of, Tang Ling bought the tiger tailbone plus that insignificant tooth with 700 Black Sea coins.

Tang Ling did not show any flaw in his negotiation from the start till the end. The elder only assumed he was just irritated about paying extra and would only settle if the elder bundled the tooth together with the tailbone at a reasonable price.

In A Hurry