Miyuki Takara is a young lady from a wealthy family who is beautiful, smart, and well-mannered. She always uses extremely polite Japanese, even when talking with her closest friends. She was the class president for her grade level in her first year, at the same time that she became good friends with Kagami. Now Miyuki is in the same class as Konata and Tsukasa, and is nicknamed "Yuki-chan" by Tsukasa. Miyuki's classmates often rely on her for help with their studies, and she is often shown giving impromptu but highly-detailed, encyclopedic definitions or explanations on diverse and obscure matters.