【作業用BGM】朝霧の渓谷図書館と精霊司書｜静かなファンタジーBGM

High on a mist-covered mountain valley, an old library waits beyond a weathered stone bridge. Through its tall arched windows, the river below and distant pine forests fade into soft white fog, while early sunlight gently turns the mist gold. A quiet spirit librarian sits beside a table of old maps, adding newly changed mountain paths and hidden trails with her feather pen. A calm fantasy ambience for working, studying, reading, writing, drawing, relaxing, and resting before sleep.