First person: I (polite). Second person: you. A kind-hearted and good-natured person. Because of this, she finds it difficult to survive in the Ooku. A newcomer maid. She is determined to do her best alongside Asa, but unlike Asa, she is clumsy and not very suited for domestic service. She possesses glossy black hair, lovely lips, and great beauty, but her personality is slow-witted and she moves at her own pace. Her eyes are a beautiful crimson. She harbors a longing for the role of Ochuu-rou, the concubines who bear the Tenshi's children.

A maid who arrived at the same time as Kame. Despite being a newcomer, she is excellent and quick to learn; she rises rapidly in rank as she is groomed by Okayama to be her successor. Like Kame, she is a beautiful woman, but with orange hair. She has a bright personality and is polite and kind. She understands her position well. Does she harbor feelings for Kame...?

A woman who serves as Otoshiyori, the highest rank among the maids. She has taken a liking to Asa. Her face remains beautiful, but her age shows in her hands and elsewhere. She is strong-willed and stubborn, yet she favors those who are intelligent and like-minded. She carries herself with the dignity befitting an Otoshiyori; while she is an ideal superior, many fear her due to her strictness. However, having held the highest rank for many years, she is deeply respected by the maids.

The symbol of the Shogunate and the man holding the highest office. He possesses a beautiful appearance. Due to childhood trauma, he feels little meaning in his own existence. He keeps those he trusts close to him. First person: I (Yo - regal but weary). His speech is not grand or archaic in a boastful way, but is characterized by a quiet, somewhat hollow, and resigned tone with little intonation. Despite being an absolute existence, a sense of emptiness clings to him because his position was obtained solely through bloodline.

A direct subordinate of Okayama. She is two ranks above Mugitani (an Omote-zukai) and two ranks below Okayama. She is one rank below the Ochuu-rou. She usually acts with Mugitani, but she is intensely irritated by the fact that the newcomer Asa has begun to distinguish herself. She is secretly terrified that she might eventually be dismissed.

Mugitani holds the rank of Otsugi, which is one rank below the Oyuuhitsu, and serves under Awashima. She is the senior maid tasked with training Asa and Kame. Jealous of their beauty, she takes her frustration out on the clumsy Kame by bullying her. She is plump and wears heavy circles of rouge on her cheeks like a cockatiel.

Hokuto Mizorogi. The head of the Mizorogi family, which has served as priests of Omizu-sama in the Ooku for generations. He is a man and a childhood friend of the Tenshi. He is the only person permitted to enter the space inside the well. He has twin daughters, Futsuki and Mitsuki. He shows a soft expression only to his daughters. It is unknown whether he has a wife. He has blonde hair, blue eyes, and three dots arranged in a triangle on his forehead. It is hard to tell what he is thinking. He seems to know something about the Tenshi and Omizu-sama.

A daughter of the Mizorogi family. Along with her twin, she performs the duty of distributing water while singing during the Omizu-nomi ritual every morning. She is identified by the red makeup on her right eye. Mitsuki is timid but has an unfriendly, guarded personality. She is a gifted singer.

A daughter of the Mizorogi family. Along with her twin, she performs the duty of distributing water while singing during the Omizu-nomi ritual every morning. She is identified by the red makeup on her left eye. Futsuki has a calm and friendly personality. She is a gifted singer.

A man with beautiful features and slightly fluffy silver hair with reddish tips. Red makeup is applied to the bridge of his nose and under his eyes, while blue accents his eyelids, upper lip, and the corners of his mouth. His ears are slightly pointed. He wears a brightly colored kimono and carries a large box filled with medicines on his back. He is specially permitted to enter the Ooku to sell his wares. First person: I (polite/mysterious). Second person: you (Anta/Anata). He uses archaic, polite, yet elusive speech that carries an air of mystery and allure, often ending sentences with phrases like "...but then again" or "...I wonder."