Killer Killer
Japanese manga series
Danganronpa Gaiden: Killer Killer (ダンガンロンパ 害伝キラーキラー, Danganronpa Gaiden Kirā Kirā), originally known simply as Killer Killer for its first volume, is a Japanese manga series written by Kazutaka Kodaka and Yōichirō Koizumi and illustrated by Mitomo Sasako. It was published by Kodansha in the magazine Bessatsu Shōnen Magazine from March 8, 2016, to May 9, 2017, and collected in three tankōbon volumes. The series focuses on Misaki Asano, a young woman assigned to the Future Foundation's 6th branch, dedicated to murder investigations in the midst of "The Tragedy", as she is teamed up with fellow investigator Takumi Hijirihara, a secret serial killer who only kills other killers, for the honor of Mukuro Ikusaba.
Although a spin-off of the Danganronpa series published to tie in with the Danganronpa 3: The End of Hope's Peak Academy anime series, the series was not initially marketed as such, with its connection to Danganronpa and full title being used as the twist ending of the first volume. The series has received a universally positive critical reception.
Development
In JVL's interview with Kazutaka Kodaka in July 2017 promoting Danganronpa V3: Killing Harmony, Kodaka confirmed that the characters of Killer Killer were originally developed for use in the Danganronpa 3: The End of Hope's Peak Academy anime series, with the manga entering development as a tie-in after they had been cut, but deemed "too interesting not to be written about", based a character concept from Danganronpa 2: Goodbye Despair of Sonia Nevermind discussing her interview with Sparkling Justice / Killer Killer. Consequentially asked in response to questions over whether he was "tired" of Danganronpa following the release of Killer Killer, Kodaka stated that for a future follow-up, he would "work on my own initiative. It takes me time, it can be a little tiring, but never mentally seen that I do what I like. Of course I also try to please people, but I also like to please myself."
Characters
Misaki Asano (麻野 美咲, Asano Misaki) – The main character, a new recruit to the 6th Division of the Future Foundation who "striv[es] to bring light in a world ridden with despair", and is assigned to the Special Case Bureau as an investigator, specializing in murder investigations despite her dislike of gore. After swiftly solving her first case only for the culprit to be themselves murdered by the serial killer "Killer Killer", Misaki makes it her personal mission to track Killer Killer down, unaware that he is her new partner Takumi, towards whom she shows romantic interest.
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