Maki's parents were gone before she could even remember. As a result, she was raised in an orphanage. She was made to help take care of the younger children at the orphanage because the older kids had to help take care of the younger ones. Maki was moved into a training facility and begun her training to become an assassin, which she herself described as "the beginning of hell". The training she described as being excruciatingly difficult - vomiting every day and crying every night. She was physically beat to help her withstand torture and taught how to die quickly in case a mission failed and she was caught. She learned to wield a huge amount of different weapons.