Eiichirō Saiyama

Saiyama Eiichiro is an antagonist featured in Danganronpa Gaiden: Killer Killer, a spinoff manga for the upcoming Danganronpa 3: The End of Hope's Peak Academy.

Saiyama is a serial killer who has been murdering people since his debut as a mangaka. He was murdered after his crime was found by Takumi Hijirihara, the Killer Killer.