Amy Plumb argues that Kishimoto's use of references to Japanese mythology in "Naruto" is intended to add further layers to the story. Kishimoto expects his readers to decode the references, which allows him to avoid direct explanations. One example is Itachi, who has three ninja techniques named after Shinto deities: Tsukiyomi, Amaterasu, and Susano-o. Plumb also cites Sasuke's clan's heraldic symbol, a fan known as an "uchiwa". These fans are used in Japanese myths to exorcise evil, by blowing it away; Sasuke discovers late in the series that he has the ability to "blow away" the influence of the Nine-Tailed Fox on Naruto. Foxes ("kitsune tsuki") are tricksters in Japanese mythology, and in some stories, they take over human bodies; Plumb comments on the obvious similarities to the Nine-Tail sealed in Naruto, and the pranks Naruto plays.