Chairperson of the Festival Operations Committee. 2nd year. 153cm. The poster girl and owner of the traditional Hyakki tea house, "Momoyodou." She enjoys overwhelming popularity due to her adorable, clumsy persona. However, that is just a facade she puts on as a poster girl. In reality, she is a shrewd manager who runs the festivals and the shop. She is a professional with a strong business spirit, willing to do whatever it takes for the success of the festival and the sales of Momoyodou. When she lets her guard down, her true self slips out, which Sensei and close friends have already noticed. Her usual words of "I want everyone to have fun" are her sincere feelings. she never tolerates anyone who engages in crooked business or fraud.

Festival Operations Committee. 1st year. 165cm. A member of the Festival Operations Committee who looks up to Shizuko, calling her "President," and usually handles behind-the-scenes work like administration. She has a serious and gentle personality. She is also studious, sometimes visiting other schools to observe cultures and festivals she doesn't know. On the other hand, her mood can easily swing toward the negative. Contrary to her carefree first impression, her self-esteem is quite low, making her weak under pressure and prone to getting depressed. She is highly dependent on Sensei and Shizuko, with Shizuko's presence serving as her emotional support.

Festival Operations Committee. 1st year. 165cm. Deeply influenced by and admiring of yakuza movies. Because she gains knowledge from movies, her understanding is often biased or incorrect; she sometimes calls the organization a "family" and Sensei "Boss," leading to misunderstandings from those around her. She is the type who cannot stand by when she sees someone in trouble, rushing to help immediately.

President of the Inner Discipline Club. 2nd year. 162cm. Always has a sleepy atmosphere. Her nickname is the "Sleeping Princess," and she has the unusual talent of being able to sleep even while eating. Her training consists entirely of sleeping. From the location to the method and the bedding, she spends her days tirelessly pursuing better sleep—or rather, better training.

Vice President of the Inner Discipline Club. 2nd year. 156cm. She seems to have joined the club out of admiration for the "Yamato Nadeshiko" ideal. She is soft-spoken and never stops smiling. A kind-hearted person of common sense who is deeply trusted by those around her. Her specialty is mind-reading, allowing her to grasp a person's thoughts and desires just by facing them. She has high domestic skills. She is also quite nurturing and takes devoted care of Sensei. She has a bold side, frequently clinging to Sensei for an "oxytocin hug" (promoting the secretion of the happiness hormone oxytocin through embracing).

Inner Discipline Club. 1st year. 142cm. The self-proclaimed mascot of the Inner Discipline Club. She is short in stature but has a very curvaceous body. Despite her loose shrine maiden outfit, her bust creates a large swell in the front, making her figure very prominent. She is a girl who is dangerous in many ways due to her quite childish personality. Originally a mischievous country girl, she met Tsubaki and Mimori and joined the Inner Discipline Club to strive to become a wonderful lady like them. While bright and energetic, she is also a troublemaker who frequently causes problems.

Hyakkararyouran Conflict Resolution Council. 2nd year. 160cm. A tactical advisor with excellent information-gathering abilities. She has black nekomata-like ears and a tail. She has a cool personality with noticeably sharp speech, but she also has a nurturing side, such as lecturing Yukari about eating too many snacks or brushing her teeth. Her "humidity" (emotional attachment) toward Sensei is high.

Hyakkararyouran Conflict Resolution Council. 3rd year. 161cm. A girl with overall pale skin, white hair, and a slender, cool impression. She is a childhood friend of the president, Ayame Nanaryou, and serves as her deputy. She usually acts as a calm and collected cool beauty, but her true nature is that of a very timid, "tofu-hearted" coward. With low self-esteem and an indecisive personality, she has a dependent nature that she herself is painfully aware of; she is the type who feels more stable following someone rather than exercising leadership. While she values interaction with others, she fears being disappointed more than anyone else, leading to a difficult inner life where she hides her true feelings and draws a line. She unabashedly describes herself as having "no redeeming qualities other than being beautiful" and being an "expressionless-type beautiful girl," showing a strangely positive side regarding her looks despite her low self-evaluation. After hearing rumors of the maid cafe from Kikyou, she decided to go since she is a beautiful girl herself. Apparently, there is no particular reason.

Yin-Yang Club. 2nd year. 159cm. She exudes a mystical aura in her appearance and gestures, making her an object of envy and devotion to the point where Hyakkiyako students address her with the honorific "-sama." She is an idol-like figure in the school with many fans, and it is said that an event called "Princess Waraku" is held with her as the star. She is a so-called "airhead" with a fluffy atmosphere, unaware of the affection she receives from those around her. She often composes haiku.

Currently suspended, unaffiliated. 161cm. One of the "Seven Prisoners" who escaped from the Correction Bureau, she has caused multiple raid incidents. She is called the "Fox of Calamity" due to her indiscriminate and large-scale acts of destruction. She rarely removes her mask in public, and despite her fame, her true face is surprisingly unknown. By removing her mask during her private life or while in hiding, she successfully conceals her identity. The face behind the mask is that of a beautiful girl with a gentle impression, the polar opposite of her fierce personality. She is usually refined and the type to blindly devote herself to the person she loves. She is a Yamato Nadeshiko who wears traditional Japanese clothing even as casual wear, but she views other people as mere pests interfering with her relationship with Sensei. Since becoming close to Sensei as his student, she devotes herself to him, but her obsession with not wanting to be hated by him often leads her to burst into tears when scolded. She tries her best to suppress her aggression toward others. She refers to Sensei as "My Lord."