What are the personality characteristics of Qing Zi and Hiroko?

Qing Zi: Kindness, liveliness, naivety and no scheming. She is a little silly, but she can answer the teacher's questions correctly in class and in quick fights, so stupidity is just her character.

Hiroko: It's very strange. Sometimes elegant, beautiful and extraordinarily rational, and sometimes too cheerful and narcissistic (this is the character set by G?sh? Aoyama in the early stage of comics). Most of the later period is elegant, beautiful and wise, but I still like Kidd.