(idiomatic) the fish rots from the head

A place name, such as that of Furukawa city in Miyagi Prefecture / a surname

変: strange, (musical notes) flat / 編: compilation, knit, plait, braid, twist, editing, completed poem, part of a book / 辺: side, edge / 偏: a type of Chinese radical, right half

xylitol (an alcohol)