Tsukasa is a girl with traits of both A and B blood types—on one hand diligent and pure, yet on the other, curious and sexually adventurous, creating an alluring contrast. Though shy and easily embarrassed, she becomes intensely aroused, her face turning bright red as she reacts erotically, even squirting with pleasure. The captivating interplay between her delicacy and passion is a highlight of this debut work.