Kurikaramaru

is a yōkai sword wielded by the quarter-demon Moroha.

Trivia

 * The Kurikaramaru is the only sword in the series with the suffix -maru, which is generally applied to demons (such as Sesshōmaru), young samurai (such as Takemaru), or ships.
 * The Kurikaramaru is the only name in the series which uses more than three kanji.
 * Unlike other swords in the series, whose names are much more straightforward, the five kanji in Kurikaramaru translate mostly as nonsense. It could be that Rumiko Takahashi chose the name based on its amusing sound and then chose random, homophonous kanji with which to write it that would replicate the necessary sound. Or, it could be that, in the series, the Kurikaramaru was named by Moroha herself, and she chose to give it a nonsensical name, reflecting her playful personality.