圭一やレナの下級生。
文法的に怪しいお嬢様口調で喋る。
負けず嫌いで生意気な面もあるがまだ幼く、圭一や魅音にからかわれ泣いてしまうことも。雛見沢随一のトラップの名手であり、放課後の「部活」においてその才は縦横無尽に展開され、魅音すらも恐れるほどである。
A young student at Keiichi and Rena's school. She tries to talk like a well-educated rich girl, but her grammar isn't as good as it could be. She hates to lose and can be a bit of a brat, but since she's still young, sometimes Keiichi and Mion will make her cry when they tease her. The town's master of traps, a talent she puts to good use in her after-school "club" activities. Even Mion fears her.