Hijirikawa Masako is a stoic, traditional girl in every sense of the word. She writes kanji with an ink brush, she dresses impeccably, speaks formally, and even meditates under a waterfall. However, she is far from a robot, as she can be quite the perfectionist and has been reduced to a blushing mess simply through physical contact with Haruhi. Her voice is higher than some characters, however she can't reach the height of Tokiwa's as effortlessly.