The Japanese name Mitsuko translates into English as the "Shining Child" or "Child of Light." Born out of poverty, Mitsuko became an orphan at a young age and lived with her next of kin. As a young woman, she worked at a local gym and dreamed of being a female detective in the city's police unit someday. She never expected to meet let alone be mentored by the great Sword Master, Yamada, who was secretly recruiting and training highly gifted but less fortunate young citizens to become a part of an elite group of Samurai Fighters. This group was dedicated to tracking down and putting an end to the vicious drug lords and human traffickers who had been preying on the helpless, targeting in particular down trodden poor orphans like herself. Now with new dreams and a clearer sense of purpose and being, the sword that she learns to wield becomes her deadly power and might for justice.