Taiyou no Esperanza

 (太陽のEsperanza, Taiyou no Esperanza) is sung by. The song lyrics are written by, and the song is composed by.

 was originally released within the game. If you clear Part 3 Chapter 17.4 it will be available within the normal lives.  was released on January 10, 2018 as the pairing song of the NO DOUBT Single, which can be purchased digitally on the iTunes Store, animelo mix, music.jp, mora, and Recochoku (レコチョク).

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