From: 	Paul E Doi[SMTP:pauldoi@iastate.edu]

>>  Yes.  In some of the later chapters, she lightens some of the skin
color on Urd's face to write "baka" for all to see.  I'd have to look at
my manga some more to find other occurances. <<

That was in vol 8. She could write it in kanji by vol 9 and english in 10.