Megaba (from the Japanese words for メガネ = megane, lit.eyeglasses and ばあちゃん = bāchan, lit.grandma) is the owner of the candy store Megasi-ya. Megasi-ya also sells software and metatags. She is a craftsman of metatags in Daikoku and a high level software programmer. She is also Yasako's grandmother, and the head of the Coil Denno Investigation Agency.