He had once worn those shoes himself and immediately felt them freely grow larger or smaller to fit his feet.
Moreover, after putting them on, his feet would not hurt no matter how far he walked. With each step in those shoes, he could cover the distance of ten ordinary steps.
As for why Uchiha Hikaru wanted those shoes from Bull Demon King, it was simply because they had obtained them together back then.
At the time, Bull Demon King's martial arts had not been so formidable, whereas Uchiha Hikaru's ninjutsu was immensely powerful.
So on that occasion, Uchiha Hikaru had generously yielded them, giving those shoes to Bull Demon King.
After obtaining the shoes, Bull Demon King truly wore them for a while. Needless to say, they were extremely convenient for making a quick escape.
They were also exceptionally light and handy; no matter where he went, they allowed him to arrive at the fastest possible speed. That was what Bull Demon King liked most about them.
But in Uchiha Hikaru's view, he had enough Chakra within his body, so he had no need for those shoes to carry him along.
Bull Demon King's martial arts had been rather poor as well, and Uchiha Hikaru had given him the shoes entirely so he could save his life in a crisis.
But after Bull Demon King's martial arts gradually improved, he abandoned the shoes, placing them beneath his cabinet and never using them again.
Because he himself knew that the shoes were an incredibly powerful cheating tool.
And he wanted to become a Grandmaster like his master. Using something that amounted to cheating would certainly bring him no benefit.
So he chose to give up those shoes.
Now, hearing Uchiha Hikaru bring up the old matter again and ask him