Cover vol.23 & 24 : r/Rokudenashi

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Akashic Records Of Bastard Magic Instructor 24 (Nov 17 release, cover combines with Volume 23) : r/LightNovels

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Rokudenashi Blues (Good-For-Nothing Blues)

Akashic Records Of Bastard Magic Instructor 24 (Nov 17 release, cover combines with Volume 23) : r/LightNovels

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Info - Volume Covers Thread - Part 1, Page 98