The Jingfeng Valley worships hardness above all else. Mineral crystal appraiser Xie Lingheng accidentally discovers that the strength of crystal stress is determined by internal lattice orientation rather than just hardness. Together with surveyor Ji Shuluo, he co-creates lattice maps, studying directional judgment, crack propagation, and orientation defense tactics, directly facing the technological blockade and counter-measures of Wenren Tieyue, Master of the Weapon Casting Hall. Ultimately, instead of relying on brute force, they use controllable crack propagation to dismantle the monolithic crystal giant structure, breaking the dogma of absolute hardness and reconstructing the understanding of artifact crafting.