: The episode introduces the concept that even "small" souls (Plus) are in constant danger and highlights Chad’s immense physical durability and loyalty. Bleach: TYBW (Cour 1) - Episode 4: " Kill The Shadow "
: The anime added extended fight choreography for characters like Renji and Byakuya that was not fully depicted in the manga. Bleach: TYBW (Cour 4) - " The Calamity " (Upcoming)
: Ichigo’s classmate, Yasutora "Chad" Sado, takes in a talking parakeet that is being pursued by a Hollow.
In the modern Thousand-Year Blood War revival, Episode 4 marks a turning point in the war against the Quincies.
Depending on which series or "Cour" you are referring to, covers vastly different parts of the story. Bleach (Original Series) - Episode 4: " Cursed Parakeet "