: In the letter, Aizen names his childhood friend and 10th Division Captain, Toshiro Hitsugaya , as the mastermind behind the conspiracy and his own "killer".
: The focus shifts from the invaders (Ichigo's group) to the fracturing alliances within the Gotei 13 as suspicions and misunderstandings reach a boiling point. Watch or Stream Bleach Episode 47
: The episode also features a brief, poignant flashback of Rangiku Matsumoto meeting Gin Ichimaru for the first time as children. Major Themes : In the letter, Aizen names his childhood