This time, it wasn't as easy as the first time, nor did it spark like the second time. Instead, it stayed on the surface of the giant bone, the flying sword kept trembling, and upon closer inspection, the tip of the flying sword was penetrating the giant bone at an extremely slow speed.
Xu Ran used his fingers to form techniques, white airflow kept pouring out from his fingertips as Innate Qi was continuously injected into the pocket-sized flying sword.
Like this, a whole hour passed, and the extremely hard white jade giant bone barely allowed a thread of marrow to flow out.
"It's out, it's out!!"
Xu Binghu, who had been watching from the side, exclaimed at this scene.
That one hour was truly torturous for him as he couldn't do anything but hold the bucket to collect the marrow. Watching intently, he became increasingly anxious.
