Takumi Hijirihara (聖原 拓実) is the main protagonist of Danganronpa Gaiden: Killer Killer, a spin-off manga connected to Danganronpa 3: The End of Hope's Peak High School.

He is a member of Future Foundation and is part of the 6th Division’s Special Investigations Unit as an investigator. His partner is Misaki Asano.

His alternative title is Killer Killer (キラーキラー), a mysterious, bizarrely polite serial killer who exclusively targets murderers. In Chapter 10 of Danganronpa Gaiden, it was revealed that Takumi is the second person who earned the title Killer Killer, with his childhood friend as the first and official Killer Killer, Shūji Fujigawa.

Killing Game AU