Iruka Umino is an instructor at the Ninja Academy, characterized by the distinctive scar across his face that he has had since childhood. The name "Umino Iruka" can be taken as "umi no iruka" ("sea dolphin"). Twelve to thirteen years ago, the Nine-Tailed Demon Fox attacked Konoha, killing many people. Iruka's parents were still out fighting the Fox and were killed. Iruka was dragged back for protection by an unknown ninja but wanted to stay where he was. After it was over, everyone in the Ninja Academy made fun of him and made him feel just like Naruto Uzumaki.
