She is the insect hashira.Her sister was killed by upper moon 2. She has been planning revenge ever since,she drinks poison so when upper moon 2 eats her he gets poisoned but that hasn't happened yet. She has an adopted sister KANAO. Her family is dead and all of her tsugako's are dead except kanao. She has 4 assistants in her mansion, aoi, sumi naho and kiyo but she treats them like her sisters.Before her sister died she told shinobu she has a pretty smile so she bottles her emotions and smiles