Katakana (Kat) Kurami is a 10 year old Black Apprentice Witch who lives in _'s house with her little sister,Washi Kurami. Both of them are orphans,and because their mentor is a Witch Frog,Kat usally does chores around the house(because she wants to),and both of them have to pretend that they're living with their 'grandmother' without raising any suspicion.