However, this question... Many people saw the question on the blackboard and shook their heads.

Use the formula to calculate the fastest speed to extract fire energy from a higher fire element.

Such a question would require at least a ranking in the top 50 of the Dragon List to answer, right? Among them, even Fairy Wu You would find this very tricky, right?

But just now, when the Eighth Elder asked this question, Fairy Wu You directly stood up and recommended Su Luo and the students did not object. After all, a dead friend is still dead[^1]. For someone to come out to bear the burden was the best outcome.