C821 Recruitment of spirit hammer strength

Strictly speaking, carved grooves could not be considered as difficult, but this was a major test for Jun Ling. It was to allow Jun Ling to quickly grasp the power of the Clear Sky Hammer, and to achieve the ability to freely release and retract them. If he could leave grooves on such a weak white crystal, then carving the Blue Sword would not be difficult at all.

But for Jun Ling