Itachi Shinden Book: Light and Darkness (イタチ真伝篇～光と闇～, Itachi Shinden-hen ~ Hikari to Yami ~, Literally meaning: Itachi True Story Book: Light and Darkness) is an arc of the Naruto: Shippūden anime. It covers episodes 451 to the first part of 458. This arc is an anime adaptation of two novels from the Naruto Shinden that focus on Itachi‘s early life. In the anime, it takes place early in-between the Kaguya Ōtsutsuki Strikes arc.