Sugamichi and Warazane

Sugamichi and Warazane are two land-dwelling catfish ridden by Fujin and Raijin, respectively.

Appearance
Sugamichi and Warazane are pink catfish with round bodies larger than an average human.

Abilities and Power
Despite being fish, Sugamichi and Warazane are somehow capable of living on land. They are also able to move silently like ninja while carrying their masters.

Wano Country Arc
Sugamichi and Warazane carried Fujin and Raijin when the Orochi Oniwabanshu chased intruders in Orochi's castle. Later, they appeared in Rasetsu Town when the Oniwabanshu was summoned to combat the rebels. Sugamichi and his master Fujin pursued Roronoa Zoro and Kozuki Hiyori into the forest, but Fujin was defeated by Zoro.

Trivia

 * In Japanese mythology, a giant catfish or namazu is said to live underground and cause earthquakes. In the 19th century art genre called namazu-e, the god Takemikazuchi was often depicted riding atop the catfish to restrain it.
 * Their names are likely derived from the Japanese poet Sugawara no Michizane. According to a legend, Michizane once used his sword to defeat a giant catfish blocking the road in Chikushino, which caused the catfish to turn into stone.