Arc 1The Number Seven Trail
Helian Yuan discovered that Blackwater Ravine and Sunken Bone Slope were parts of an old system for holding and transferring demonic beasts, while he learned to control Tiger Shadow and survived the collapse of the ravine. He reached Sunken Bone Slope, where a collared Blue Rock Panther and the gray-robed recovery order showed that the old cage was still active.
Chapters 1–2525 summaries