Kamiyagawa's judgment was correct; the second piece of Divine Remains Bone in this stone chamber belonged to the Netherworld's Three Paths River, belonging to the Great Yama.
Earlier, Kamiya had reached an agreement with Yama—
The forces of the Three Paths River and the Second Generation Yama, Xiangyue Xun, would submit to Takamagahara. In return, Kamiya needed to assist in the reconstruction of the Three Paths River, allowing him to lead and manage the Netherworld to restore its past order.
The matter of "retrieving Yanmo's Skeleton" was also included in the "Three Paths River Reconstruction" plan.
And it was an indispensable and crucial element.
"However, according to the insight given to me by the First Generation Yama's consciousness, Yanmo's Skeleton should have been stolen by Yomi."
