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The competitor would definitely try to prevent him from using the Quenching Furnace.
However, Lu Heng's response caught him by surprise.
After a moment's thought, Lu Heng replied, "As long as the Crystal Cores earned can compensate for the consumption of the Quenching Furnace, I see no problem."
The reason he did not outright deny the competitor the chance to use the Quenching Furnace was not out of magnanimity, but because it was unnecessary.
Quenching Castle would interact with more and more Superpower Users in the future, and human Quenching Masters couldn't possibly remain singular forever.
That is to say, if He Shangyong were blocked now, there would still be Chen Shangyong and Wang Shangyong later.
Instead of blocking these people, it was better to improve relations with Gulu.
Thus, the suggestion Lu Heng made was for the benefit of Quenching Castle, thinking from Gulu's perspective — the correct way to build rapport.