Shinobu Kirishima

Kirishima is a maid in the service of the Hōjō family. She sees it as her duty to watch over Reika. She carries a wakizashi sword. Unlike Hosaka who uses relatively casual (though not rude) speech patterns with Reika, Kirishima uses only Japanese honorifics toward Reika, but quickly reverts back to blunt speech toward Shungo, whom she thinks is not worthy of Reika, and is always trying to "execute" him.

(Source: Wikipedia)