Kawamatsu

A hulking puffer fish-man whose look is easily mistaken for a folkloric kappa, Kawamatsu has webbed hands and pale yellow-green skin. At 271 cm he stands nearly as tall as Raizo, with a rounded body, a beak-shaped mouth, blush marks on each cheek, and a mane of long, wild orange hair. His outfit pairs a green kimono with a red cape, a yellow waist sash, tan sandals, and a broad tan kasa marked with a dark diamond at its peak.

Gentle and deeply caring, Kawamatsu went to great lengths to comfort the traumatized young Hiyori and once shared his meager rations with a starving Onimaru even though he barely had enough for himself. Honoring his dying mother's instruction to pass as a kappa among Wano's people, he refuses to call himself a fish-man to anyone but Oden, whom he trusts and admires, and he even named his sword style after the creature. He loves sumo, longing to compete even while jailed, and carries a distinctive laugh, Kappappappa. As a Scabbard he is fiercely loyal to Oden's bloodline, enduring starvation so Hiyori could eat and raging at Kanjuro's betrayal and threats against her.

Washed ashore in Wano as a child and orphaned when humans stoned his mother, Kawamatsu obeyed her last words and lived disguised as a kappa. Oden rescued him from a discriminatory mob, and he became one of Oden's most devoted retainers, even confiding his fish-man heritage. He marched with Oden against Kaidou, witnessed his lord's execution, and afterward shielded the six-year-old Hiyori, smuggling her out of the burning Oden Castle through a water channel and raising her for seven years. After she left him a farewell letter and vanished, he turned to gathering swords from Ringo's graveyard, befriending the fox Onimaru and adopting the alias Gyukimaru, until he was captured and locked in Udon. For thirteen years the Beasts Pirates fed him poisoned fish on Orochi's orders, yet he endured. Once Luffy reached Udon, Kawamatsu broke free, reunited with Raizo and the Scabbards, and rejoined the campaign against Orochi and Kaidou. He fought through the raid on Onigashima, helped decapitate Orochi's serpent heads, drew blood from Kaidou himself, and survived to see Momonosuke crowned shogun. He was then named daimyo of Hakumai. As a fish-man he wields ten times a human's strength, spits fishbones like deadly projectiles, masters Armament and Observation Haki, and fights with his reverse-grip Kappa-ryu swordsmanship using the blade Soto Muso.