Bleach That Man, for the Sake of the Kuchiki (TV Episode 2009) - IMDb

That Man, for the Sake of the Kuchiki: Com JB Blanc, Johnny Yong Bosch, Neil Kaplan, Jamieson Price. Centuries ago, Ginrei Kuchiki, Byakuya Kuchiki's grandfather, and his son-in-law Koga Kuchiki were assigned to bring down the rebel forces threatening the Seireitei. With his Zanpakuto Muramasa's power, Koga wipes out the renegade Soul Reapers one after another, and soon his strength becomes known throughout the Soul Society. Yet Koga himself was frustrated by the fact that his father-in-law Ginrei did not seem to acknowledge his accomplishments.

Bleach (2004): ratings and release dates for each episode

Bleach Shingakki, gense ni Renji ga yate kita!? (TV Episode 2006) - IMDb

Bleach That Man, for the Sake of the Kuchiki (TV Episode 2009) - IMDb

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That Man, For the Sake of the Kuchiki, Bleach Wiki

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That Man, For the Sake of the Kuchiki, Bleach Wiki