Danganronpa Gaiden: Killer Killer

Danganronpa Gaiden: Killer Killer(ダンガンロンパ 害伝キラーキラー Danganronpa Gaiden Kirā Kirā) is a manga spin-off connected to Danganronpa 3: The End of Hope's Peak Academy. The official timeline of Danganronpa events places it after the events of Danganronpa Another Episode: Ultra Despair Girls and before the events of Danganronpa 2: Goodbye Despair.

The manga was released on March 8, 2016 in Bessatsu Shōnen Magazine April issue. The original concept was made by Spike Chunsoft and the scenario was created by both Kazutaka Kodaka and Yōichirō Koizumi.

Synopsis
In response to The Biggest, Most Awful, Most Tragic Event in Human History, an organization called Future Foundation was created to combat the chaos still present even after the death of The Mastermind.

Misaki Asano is a new recruit, working as a special investigator for the 6th Division's Special Case Bureau--a branch dedicated to only the most bizarre and challenging murder cases. Alongside her partner, Takumi Hijirihara, they aim to combat despair one case at a time.

Though, perhaps their most challenging case is that of the mysterious Killer Killer, a bizarre serial killer targets other murderers.

Chapter 1

 * Misaki Asano
 * Takumi Hijirihara
 * Ikue Dogami
 * Momomichi Ito

Chapter 2

 * Mekuru Katsuragi
 * Rei Shimizu

Chapter 3

 * Ted Chikatilo
 * Eiichiro Saiyama

Chapter 4

 * Juzo Sakakura

Chapter 5

 * Kenji Tsuruhashi
 * Ultimate Make-up Artist

Chapter 6

 * Kyosuke Munakata
 * Kyoko Kirigiri
 * Shuji Fujikawa

Chapter 7

 * Kinari Kunugida


 * Sakuma Fujii
 * Chuusuke Ooyama
 * Mimiko Tomizawa
 * Nobuo Takeda

Chapter 8

 * Mukuro Ikusaba

Trivia

 * Several deaths from the Danganronpa: Trigger Happy Havoc are referenced in Chapter 3.
 * The Volume 1 cover art is also a reference to this.
 * In Chapter 3 the Spanish serial killer mentioned in Danganronpa 2: Goodbye Despair, Sparkling Justice, is also referenced.
 * It is also hinted that the Killer Killer and Sparkling Justice are the same person.