I’m a big fan of Asa Chang & Junray (e.g. Senaka or Hana). However, this track is by Asa Chang & Pilgrim and is called either Shadowless, Shadowless Human, or Human Without Shadow (depending on the various translations from Japanese).
An absolutely stunning piece of music. What goes on in the video after the 6 minute mark is anyone’s guess (bearing in mind the Japanese obsession with cleanliness and their uneasy relationship with the huge crows that populate the islands):