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As such, it is considered to be incomplete regarding the information available.
The article below is based on non-localized content only available in Japanese.
As such, all information in this article is based on fan-contributed translations.
Firework Lyrics is the fifth chapter of the manga Danganronpa Gaiden: Killer Killer.
Chapter 5 was published in Bessatsu Shōnen Magazine on July 9, 2017, and later re-published in Danganronpa Gaiden: Killer Killer Volume 2 on November 9, 2016.