Short and petite, Rukia Kuchiki stands at just 144 cm with light skin and striking purple eyes. Her black hair reaches her shoulders, with a few strands always falling between her eyes. As Captain of the 13th Division, she wears the standard shihakushō with a white tekkō extending above her elbows. Despite her noble status, she retains a modest demeanor and often chooses to speak with ordinary people. However, her cool and lone exterior hides her personal troubles, as she rarely opens her heart even to friends. She is graceful and clean in manner, yet completely clueless about the modern Human World, often relying on her acting skills to navigate unfamiliar situations.