Monica

She is Moses's younger sister. She is also the sole reason he learned to beyblade and joined BEGA: she had a serious illness, yet their family could not pay for the operation by themselves. Moses signed up at BEGA because Volkov had told him he would pay for it altogether, if Moses did give his 100%. Her brother's determination to save her obviously made her very happy and she continually supported him. Once, she gave him a small, stuffed version of him as a way for Moses to remember that she was confident in him and that she would always be there to help, at least in spirit. Her operation took place at the same time her older brother battled Rei, which pressured him because he knew he could not lose. After the fight, Moses went to visit her once the operation was over and that she only needed to rest. In the end, she is safe and happy living with her brother.

Trivia

 * 'Monica' is Greek for 'Advisor'.