Sumiyoshi Kamado is an ancestor of the Kamado Family and an acquaintance of Yoriichi Tsugikuni. Sumiyoshi looked remarkably like an unscarred, older version of Tanjiro Kamado, possessing the same facial structure, eyes and hair type, although his was longer, about shoulder-length and worn tied in a ponytail behind his head. Their similarities continue into his attire, as Sumiyoshi wore a white nagajuban with a short, black-checkered kimono over it of an almost identical design to Tanjiro's usual haori, as well as a pair of light tobi pants. He finally sported white zōri with red straps, lacking any tabi socks. In the short memory piece that Tanjiro received from his ancestor, Sumiyoshi, it is shown that their personalities are very alike. Sumiyoshi, like Tanjiro, is shown to be kind, generous, honest, and humble.