Wonderful Octave -Haruka ver.-

Wonderful Octave -Haruka ver.- is sung by Haruka Isumi's voice actor, Yuya Hirose. The song lyrics were written by, and the song was composed and arranged by.

Wonderful Octave -Haruka ver.- was released on Haruka Isumi's birthday as part of his Wonderful Octave Single in 2020. It was also added to the game on the same day, and becomes available in normal lives after clearing Part 1 Chapter 1.6.