Oedo Sumo Retsuden ~A Tale of Sumo from Long Ago~

Not included in the Ishinomori Complete Works.

(from ebookjapan):
A "sumo manga" by Shotaro Ishinomori, a master of the hero manga world, dynamically depicting sumo wrestlers active in the Edo period. The Asano family, which appears in Chushingura, had an official sumo wrestler, Naminohana Kuranosuke . A few months after Asano, the feudal lord of Banshu-Ako, was ordered to commit seppuku for his involvement in the murder of Kira, Naminohana Kuranosuke, who remained loyal to the Asano family, earned his living by doing hard work and wrestling. One day, Naminohana rescued a geisha named Chidori from being attacked by thugs.......?