Kokou no Hikari Lonely dark

 (孤高の光 Lonely dark) is the seventh single by Ito Miku. It, and peaked at #7 on the Oricon single chart.

Single Information
The lead track Kokou no Hikari Lonely dark was used as the second opening theme for the anime Plunderer.
 * Catalog Number:
 * COCC-17769 (Regular Edition)
 * COZC-1659/60 (Limited Edition)
 * Lyrics: Eiko Kyo (Track 1)
 * Composition: Mase Koji (Track 1)
 * Arrangement: 中畑丈治 (Track 1)

CD

 * 1) Kokou no Hikari Lonely dark
 * 2) Sweet Bitter Sweet Days
 * 3) Kokou no Hikari Lonely dark (off vocal ver.)
 * 4) Sweet Bitter Sweet Days (off vocal ver.)

Limited Edition DVD

 * 1) Kokou no Hikari Lonely dark (MV)

Trivia

 * The single was originally set to be released on May 27, 2020, but it was postponed to June 17 due to the COVID-19 pandemic.