Wonderful Octave -Gaku ver.-

Wonderful Octave -Gaku ver.- is sung by Gaku Yaotome's voice actor, Wataru Hatano. The song lyrics were written by, and the song was composed and arranged by.

Wonderful Octave -Gaku ver.- was released on Gaku Yaotome's birthday as part of his Wonderful Octave Single in 2019. It was also added to the game on the same day, and becomes available in normal lives after clearing Part 1 Chapter 1.6.