Blood Type: B Tenma Tsukamoto is the 16yearold female protagonist who loves ji Karasuma. Tenma is short undeveloped and childish for her age. She often is mistaken as being younger than her classmates and her younger sister Yakumo. One of her obvious physical features are the little ponytails in her hair which often wiggle if she is happy or excited. She is also dense slow and unreliable and often misunderstands otherwise obvious situations. Despite her shortcomings Tenma is goodnatured and friendly.