Under the clear guidance of Gua Tianshi, I finally realized the contradiction.
This Eastern Coastal City was destroyed in the aftermath of the clash between Impermanence and the Great Demon, wiping out nearly a million lives in an instant. So, where have all those souls gone?
Faced with the terrifying shockwave that swept everything away, ordinary people's souls couldn't bear it; it wouldn't be surprising if all their souls scattered. But even if millions of souls were scattered, one should still be able to observe and sense the sedimentation of soul components in the Living World. It's akin to how, even if a city were bombed with a thousand strategic nuclear weapons, one could at least sift through the rubble afterwards and find charred remains. The same logic applies to souls.
No, it's more than that...