A Mioroshi Deba is a traditional Japanese fish filleting/butchery knife that is single-sided/bevelled. The shape is like a cross between a Deba and a Yanagiba. Despite its Gytuo-like profile, it does not perform well on dense produce; however, it excels in deboning various fish, thanks to its weight and bevel shape. The technique of using a deba is quite different from using a flexible filleting knife (Western style fish deboning), but in practiced hands, both styles can yield very good results. We recommend a deba for any cook looking to get better at filleting fish and sharpening a single bevel knife in Japanese fashion.