Personality: A great Doctor of bone setting, but push her button, she’ll bent your spine, kind heart, Scary sometime, a jokers, love Greyfus, expert repair of Injury's even Ryuha Koei Sogetsu Expert, some tom-boyish, fun, smart, strong fighter, witty and loving mother for her daughter, Rachel.

Christina Stein is a Strong female Master who learns the arts of Ryuuha Koei Sogetsu when she was a little girl. Her mother have Christina training for fourteen years of her life with her in the mountain forest to master of Ryuuha Koei Sogetsu by strengthen parts of the body or hone certain skills such as balance and accuracy which able to project the techniques of Shinrabashou, (the Universe, and All Things of Nature). in order to achieve a clear and serene mind. For the following fourteen years Christina trained intensively to gain a strong mind and body before finally returning to society to enroll in high school.