Kamiyagawa estimated that Asuramikoto, the Thunder God, at the peak of his strength, was definitely of Rank S.
This kind of thing actually didn't even need estimating; it was set in stone.
Leading his subordinates outside the sacred forest, they built a flesh-and-blood wall to resist the massive invasion from the Yomi side, fighting until Yomi's forces retreated from the Source Earth without ever being defeated, standing steadfast and unyielded.
Asuramikoto was absolutely top-tier deity combat power.
Not only was he second to none within the Ainu forces, but even among the forces of the Shinto Religion and Yomi, Kamiyagawa estimated that few deities could match him.
If there could be a few more warriors like Asuramikoto on the Ainu side, it would be difficult to say whether Yomi could push Ainu to destruction.
But how much strength could the currently extremely weakened Thunder God still exert?
Kamiyagawa couldn't be certain.