Omitsu was a middle-aged woman with noticeable wrinkles on her face and sharp eyes. Her black hair was tied up in a type of tsubushi shimada style held with a decorative comb.
Although not much is known about Omitsu's personality, it seems that she was an esteemed figure in the brothel, evident by the number of people that mourned her passing days after she was discovered dead.
Later on, Omitsu would become the manager for the Kyogoku House, and work with the Oiran Warabihime.
After hearing numerous incidents involving girls committing Ashinuke, getting hurt and even killing themselves, Omitsu confronts Warabihime as she is believed to be the culprit. When accused of bullying several girls to suicide, Warabihime coldly retorts they wouldn't have gotten hurt if they simply had not annoyed her. She tactfully adds that a big part of the house's success is due to her alone. Infuriated by her attitude, Omitsu recounts a story she was told by an older woman when she was a child; a story about many oirans across history who shared the same traits. They were extremely beautiful but notorious for their cruelty, causing them to have "hime" to be added to their name for their petty and harsh attitude. Notable, they would all slant their heads when something angered them.
Seeing Warabihime doing just that, Omitsu tearfully confronts the Oiran for her inhuman nature, while armed with a knife. Warabihime reveals her demonic nature and grabs her with her obi, before hovering high above the district. Omitsu begs for her life but Warabihime "kindly" tells her not to be afraid, since she doesn't eat old people, before dropping the hapless woman to her death below.
As an ordinary human, she doesn't possess any additional powers or abilities.
- Warabihime and other residents of Kyogoku House call her "Okami" (
女 將さん Okami-san?), meaning the proprietress of their own residence.