Shishiwakamaru is a member of the Fractured Fairy Tales in the Dark Tournament. His name is derived from Ushiwakamura, a renowned historical general celebrated in Noh theater. The Cape of No Return is inspired by the Hagoromo, another prominent element in Noh plays. Initially introduced as one of the most sadistic and evil characters in YuYu Hakusho, Shishiwakamaru delights in killing and fighting. He despises justice, proclaiming, "Violence is my meat, and wickedness my ambrosia," and has no patience for hypocritical "pacifists." Despite his villainous nature, he occasionally acts as a protagonist, though usually for personal gain, much like Hiei.
In the Dark Tournament, Shishiwakamaru boasts a large female fanbase who affectionately call him "Waka." He explains that he participates in the tournament to entertain his fans. Unlike many other demons from the Dark Tournament, he reappears later in the series. Shishiwakamaru owns the Cape of No Return, which can transport anything it touches to another dimension. His primary weapon is the Banshee Shriek, a blade capable of stealing souls and using them for attacks or defenses.
He first battles Kuwabara, utilizing the Cape of No Return. Later, he faces Genkai and is defeated when she uses her Reihado-ken technique to steal some of his power before finishing him with her Spirit Reflection Blast (Rei Kou Kyou Han Shyo). Following his defeat, he trains under Genkai, advancing from an upper C-class to an upper A-class demon to compete in the Makai Tournament and achieve fame. Although he progresses past the preliminaries, he does not advance far beyond that stage.
Often seen perched on Suzuki's shoulder in his diminutive form, Shishiwakamaru continues to play a role in various adventures throughout the series.
