Growing up an orphan and living on her own for most of her life, Kasumi grew up with a natural distrust for authority. Trusting what is morally right more than what is the law. This showed when Kasumi and a pair of friends came into wrestling together and formed the group Team Doge. The group always finding a way to upset the authority.
Since then Kasumi has gone on to win multiple championships across the world and continues to defy what would seem her limiting stature. Almost always the smallest in the fight, yet her mentality is that of a vicious pit bull in the ring.