How's that? Have any specific questions or aspects you'd like me to expand on?
The world-building is also well-done, with a clear distinction between the human world and the Seeker's realm. The Fog and its effects on the environment and humans are well-depicted, creating a sense of tension and unease.
The supporting characters are also well-fleshed out, particularly the enigmatic and intriguing characters of Fuu and Mikage.