Obsidian

Background
"Obsidian" is an original song by Nijigenki featuring Hatsune Miku.

The song was first released on August 25, 2017 which features Angela, with this version being part of Nijigenki's album Hue (Colors EP). The song was then remastered for the VOCALOID version, with the version being uploaded on August 31, 2018 in honor of Miku's 11th anniversary.