Lu Fan transmigrates to a cultivation world where spiritual roots determine one’s worth. Without a spiritual root, he is branded as “impurity” —a worthless being discarded by the immortal path. His sister Lu Qing sacrifices everything to protect him, her cultivation destroyed in the process. Refusing to accept a world ruled by divine will, Lu Fan wages war against heaven itself—not with spiritual energy, but with physics. Using principles like lightning rods, resonance, and mechanical logic, he defeats cultivators who rely on raw power alone. To save his sister, he storms the Heavenly Dao Academy, determined to rewrite the corrupt rules of immortality with mortal ingenuity and unyielding will.