Narumi was born in the witches realm to Mihonosuke, who was secretly engaging with a human. She was raised with humans by just her father while her mother remained in the other world. This changed when Narumi turned 10 and her powers awakened. After that, she was taken away by the Witches Council, who decided to have her killed, up until Mihonosuke confessed that the child was hers. Because she was one of the many wives of the Eldar Witch, they decided that instead of killing her, they'd shackle her powers and take away her memories before placing her back with her father who, scared of what the child could do, handed her off to Kyoko who was a co-worker at the time. Though Narumi's memories had went away, she found out that the shackle spell had failed and she was still in control.

-Her personality is a bit Boyish and, if you watch any anime, a bit tsundereish.

-She has Illusion Manipulation powers along with a limited amount of soul sucking.