Iori Yagami (八神 庵, Yagami Iori) is one of the main characters in The King of Fighters series.
The rival of Kyo Kusanagi, Iori Yagami's family descends from the Yasakani, one of the three families who, along with the Kusanagi and the Yata (of which the organizer of the 1996 King of Fighters tournament, Chizuru Kagura, is a descendant), sealed Orochi away 1,800 years ago, although they later signed a blood pact with the deity out of envy for the Kusanagi clan, thus becoming the Yagami clan, whose purple flames became the sign of their pact. Over the centuries, this envy turned into outright hatred, with Iori constantly obsessing over killing Kyo in duel. Using pyrokinesis to fight, Iori joins the series in The King of Fighters '95 as one of the members of the Rival Team, along with Geese Howard's right-hand Billy Kane and Eiji Kisaragi, a ninja who is out to defeat the Kyokugen martial arts school. Like his ancestors, due to the pact with the Orochi, Iori is susceptible to the Riot of the Blood which, when activated, drives him into a feral and blood-thirsty, but near-irrational state. Iori also features in his own drama CD and as a member in SNK's own character image band, in which he plays the bass guitar. His hobby as a bassist is also acknowledged in the King of Fighters canon, and plays part in the motivations of a rival band, CYS, who form the New Faces Team in The King of Fighters '97 as the game's major antagonists.
Though not originally from the Fatal Fury series, Iori made a playable appearance in the Game Boy version of Real Bout Fatal Fury Special.
As a background character
Iori Yagami appears in the background of the Fatal Fury stage, King of Fighters Stadium. He can appear at random, but will always appear if the music for the match is either Stormy Saxophone 2 - KOF '96 or New Order - KOF XIV.
As a costume
In the costume's trailer, Mario can be seen running away as the Iori Mii Brawler appears to be giving chase. This is a reference to Iori's hatred for Kyo Kusanagi's flames as Mario similarly uses Flame attacks. The trailer also shows the Iori Mii Brawler performing a combination of jab 1, up tilt, and down aerial; this is a reference to Iori's move 127 Shiki: Aoi Hana, which can be strung together into a three-hit combo. The costume's promotional screenshot shows him near some Darkness particles, referencing his purple flames.
As a spirit
Iori Yagami appears as an Ace class spirit.