Bunko Comic Kirkiritei no Buraun-sensei (library edition) (4) Gentosha Comic Manga Library
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: 文庫コミック きりきり亭のぶら雲先生(文庫版)(4) 幻冬舎コミック漫画文庫