Ayumu Kira (吉良歩; Kira, Ayumu) is a Chūnin (later Jōnin)-ranked shinobi of Konohagakure well-renown for being a substitute-instructor for various Genin squads while their said leaders are on call or otherwise, and for being a temporary ninjutsu instructor in the Leaf's ninja academy. Upon Naruto Uzumaki's return from a 2-3 year training retreat, Ayumu was permanently stationed with the other Rookie 9 and Sai due to his said internal squad issues. As a result, he gained close-up insight on Naruto's struggles with Sasuke Uchiha and how others felt over the topic as various missions succeeded through time. Soon after the brink of the Fourth Shinobi World War, Ayumu found himself promoted to a personal assistant of the Sixth Hōkage - but was replaced by Shikamaru Nara upon Naruto's seating enro