For example, the synthetic materials for the Epic Giant's Heart.
Klein had spent a lot of time searching for the materials on it.
If it weren't for the fact that someone had some in stock, he wouldn't have any leads on many of his items.
If he were to continue searching, how long would he have to search in the vast catacombs world?
It was too much of a waste of time!
However, the reason was that he was too powerful.
There was even a huge gap compared to second place.
Therefore, under such circumstances, they were unable to provide him with what he needed.
He also didn't want to give them what they needed for free.
After all, these things were obtained by Klein himself. There was no need to give it to them.
Equivalent exchange was the method of trade that Klein advocated.
