Retsu Unohana Relations Graph
Primary
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Retsu Unohana the captain of Isane Kotetsu
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Retsu Unohana the former captain of Isane Kotetsu
Extended
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Isane Kotetsu Sister of Kiyone Kotetsu
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Isane Kotetsu the lieutenant of Retsu Unohana
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Isane Kotetsu the former lieutenant of Retsu Unohana
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Isane Kotetsu Captain of Kiyone Kotetsu