Hannyabal must've gotten quite strong to be Chief Warden though.
Maybe they were put to sleep someway, they don't even look damaged. Though it seems like Brook drew his sword before that.
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Nio-chan and Ctes: http://img.imgcake.com/nio/Untitledpngyn.png
BroAndCharAndCtes: http://i.imgur.com/oBQfY.png