DIAMOND FUSION

 is sung by. The song lyrics are written by, and the song is composed by.

 was released on February 28, 2018 as part of the Heavenly Visitor Single, which can be purchased digitally on the iTunes Store, animelo mix, music.jp, mora, and Recochoku (レコチョク). It was also released within the game. If you clear Part 1 Chapter 1.6 it will be available within the normal lives.

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