Sukesada is a Fukuoka smith of Province, traditionally transmitted as a student of Sukezane and active during the mid- period around the Bun'ei era (c. 1264–1275). Sword compendia also record a Sukesada of the Sukezane lineage active around the Einin era, said to have worked at Yamauchi in , and a further Sukesada described as a descendant of Yukikuni active around the Tokuji era. The precise distinction among these entries remains difficult to resolve with certainty; however, the surviving body of work attributed to this maker is consistent with the flourishing period of the Fukuoka lineage, one of the major schools that prospered in localities such as Fukuoka, Yoshioka, and Iwato from the early through the period. Because the characters of Sukesada's signature closely resemble those of Sukezane, his blades are readily mistaken for the work of his master.
Sukesada's preserve the elegant characteristic of mid- production: slender in build with a pronounced difference between and width, a strong sense of , high , and . His forging exhibits tightly worked with , and vivid appears clearly — a hallmark of the Fukuoka tradition. The ranges from flamboyant intermingled with , , and — producing a brilliant, highly varied, and exuberant — to quieter compositions in which a shallow -flavored is mixed with , displaying and with a clear . In both modes, the workmanship closely resembles that of Sukezane, and both and are notably clear.
Extant signed works by Sukesada are exceedingly rare, and the has repeatedly emphasized that each surviving example constitutes valuable documentary source material for the study of the school. Those blades that retain with their original signatures are regarded as especially desirable. The superlative preservation of both and observed in the finest examples further elevates his work, which, taken together with the scarcity of signed pieces, secures Sukesada's position as a smith of considerable scholarly importance within the broader Fukuoka lineage.