History Manga / KillerKiller

* LoveAtFirstSight: Hijirihara to Rei Shimizu.

** Chapter 9. Oh boy, chapter 9. [[spoiler: There isn't just one Mukuro attacking the eight branch, ''there's an entire army of them!'' Oh, and Asano is seemingly killed by Fujigawa, [[ApologeticAttacker who is crying his eyes out while doing it.]]]]

* YouAreAlreadyDead: Itou thinks he's fine before his flesh explodes off into several square strips of skin.

Written by Sasako Mitomo and launched in March 2016, ''Dangan Ronpa Gaiden: Killer Killer'' is a SpinOff work within the ''Franchise/DanganRonpa'' universe, specifically tying into ''Anime/DanganRonpa3''. Initially, the manga was advertised and presented as a separate work, but was eventually revealed in the third chapter as being in the same universe and subsequently rebranded.

* KarmicDeath: Hijirihara is generally fond of killing people in ways reminiscent of their own murder methods.

* ConservationOfNinjutsu: [[spoiler:You'd expect a clone army of [[WorldsBestWarrior Mukuro Ikusaba]] to be nigh unstoppable, only for Hijirihara to cut through them like they're nothing. [[JustifiedTrope Justified]] since they aren't actually Muldrow clones, just wannabe murderers that are trying to act like Mukuro.]]

* SerialKillerKiller: Hijirihara's shtick in a nutshell.

* ConservationOfNinjutsu: [[spoiler:You'd expect a clone army of [[WorldsBestWarrior Mukuro Ikusaba]] to be nigh unstoppable, only for Hijirihara to cut through them like they're nothing.]]

** Chapter 10 features one with the appearances of [[spoiler: Sonosuke Izayaoi and Ruruka Andou.]]

** In chapter 4, [[spoiler: Chikatilo walking into the stadium midway through the fight between his doppulganger and Hijirihara. This is followed by outing the imposter as Juuzou Sakakura.]]

** Chapter 8: [[spoiler: Asano learns that Hijirihara is Killer Killer, the perpetrator of the Gibora Massacre is revealed to be Mukuro Ikusaba and the Eight Branch is attacked by someone who seems to be the deceased Ikusaba.]]

* BloodierAndGorier: To say the very least. The first chapter alone shows the culprits head being cut up and basically exploding courtesy of Hijirihara.

* {{Retcon}}: While it had been suggested before, the manga completely retcons out the more apocalyptic portrayal of the Tragedy given ''VisualNovel/DanganRonpa''. While the world was indeed in a very bad state, nothing implies that the forces of SHSL Despair had the grip the first game said they did and in less than a year things have rebuilt a fair bit. Although, given our only source for the state of the world in the first game was none other than Junko Enoshima, who was almost certainly trying to play the Tragedy up to make her remaining captives despair, this state of rebuild is actually plausible.

* DiesWideOpen: These type of eyes being the first we see of Naegi implies as much...

* {{Retcon}}: While it had been suggested before, the manga completely retcons out the more apocalyptic portrayal of the Tragedy given ''VisualNovel/DanganRonpa''. While the world was indeed in a very bad state, nothing implies that the forces of SHSL Despair had the grip the first game said they did and in less than a year things have rebuilt a fair bit.

* WhamShot: Two in Chapter 3:
** When Hijirihara kills Saiyama, the background shifts to depict Monokuma, confirming this is indeed a part of the franchise.
** The ending, where a kidnapped Asano rolls over to see what is supposedly [[spoiler: Makoto Naegi's corpse.]]

* {{Retcon}}: While it had been suggested before, the manga completely retcons out the more apocalyptic portrayal of the Tragedy given ''VisualNovel/DanganRonpa''. While the world was indeed in a bad state for a while, things rebuilt quite quickly after Enoshima's defeat and nothing implies the grip despair had on the world actually happened.

* ThePointsMeanNothing: Hijirihara gives Itou (the apparently low) score of 20 points for the murders

* ShoutOut: Hijirihara makes Asano recite several stock phrases from ''KindaichiCaseFiles'' to unnerve the first culprit. Turns out his grandfather was a fan.
* SymbolicMutilation: the victims in the first case have their body-parts stuffed together to create multi-armed statues of Asura.

* BloodierAndGorier: To say the very least. The first chapter alone shows the culprits head being cut up and basically exploding courtesy of Hijirihara.
* FirstEpisodeSpoiler: The incident in middle school left Hijirihara more than a little...unhinged.
* SerialKillerKiller: Hijirihara's shtick in a nutshell.

** The ending, where a kidnapped Asano rolls over to see what is supposably [[spoiler: Makoto Naegi's corpse.]]

Written by Sasako Mitomo and launched in March 2016, ''Dangan Ronpa Gaiden: Killer Killer'' is a SpinOff work within the ''Franchise/DanganRonpa'' universe, specifically tying into ''Anime/DanganRonpa3''. Initially, the manga was advertised and presented as a separate work, but was eventually revealed in the third as being in the same universe and subsequently rebranded.

* WhamEpisode: Chapter 3, when the manga reveals itself to be a ''Franchise/DanganRonpa'' SpinOff.

Set after [[VisualNovel/DanganRonpa the Worst, Most Despair Inducing Incident in the History of Mankind]], the story focuses on Misaki Asano, a young woman who signs up for the Special Crime Investigations unit, a group dedicated to investigating hyper violent crimes. On her first day, Asano is partnered with Takumi Hijirihara, a sardonic, lazy investigator who seems worth nothing. In reality however, Hijirihara hides another side, he was caught in a massacre incident in middle school that left him scarred with a disturbed obsession with murder, which he takes out on other killers. Despite his eccentricities, the two become friends, and find themselves on the path of the hope spreading organization the Future Foundation...