Ririchiyo Shirakin (白鬼院凜々蝶 Shirakiin Ririchiyo?)Voiced by: Rina Hidaka
A half-human, half-demon high school girl who transferred to Room 4 of the Ayakashi Mansion in order to live alone. She yearns to be independent and constantly worries about not being able to communicate with other people properly, one of her reasons for moving. Her SS agent and servant is Soushi, a fox spirit she rescued long ago whom she later develops a relationship with. Though she has characteristics of a tsundere, she is actually a tsunshun in terms of personality.
Soushi Miketsukami (御狐神双熾 Miketsukami Sōshi?)Voiced by: Yuichi Nakamura
The assigned SS Agent to Ririchiyo and her servant, Soushi is a half-kitsune whom Ririchiyo helped when she was little. Very calm, polite, and gentle to people, he has a soft spot for his mistress, blindly obeying her and protecting her with his life if the situation calls for it. A notable feature is his Heterochromia: his left eye is blue, while the other is a dark gold.
Renshou Sorinozuka (反ノ塚連勝 Sorinozuka Renshō?)Voiced by: Yoshimasa Hosoya
An Ittan-momen demon with several tattoos on his tanned skin, he is the tennant of Room 3. He develops a brother-sister relationship with Ririchiyo, also earning Soushi's trust in the process. His SS Agent is Nobara.
Nobara Yukinokouji (雪小路野ばら Yukinokōji Nobara?)Voiced by: Yōko Hikasa
The SS Agent assigned to Renshou, Nobara is a Yuki-onna whose human form is a young woman wearing glasses. She fancies girls and fashion so much that, in her free time, she looks at adult magazines shares them with Renshou. Nobara states that she is attracted to Ririchiyo Shirakin in a sexual way.
Kagerou Shoukiin (青鬼院蜻蛉 Shōkiin Kagerō?)Voiced by: Tomokazu Sugita
Tenant of Room 2, Soushi, Banri, and Natsume's former master, and Ririchiyo's fiancée. Shoukin is eccentric, straightforward, and a narcissist, calling the other tenants "pigs" or "animals". His SS agent is Karuta.
Karuta Roromiya (髏々宮カルタ Roromiya Karuta?)Voiced by: Kana Hanazawa
The assigned SS Agent to Shoukin, a Gashadokuro (large skeleton) whose human form depicts her as a light brown haired teenage girl. Though she appears to be "zoned out" most of the time, she's actually very clever and observant and likes tasty food.
Banri Watanuki (渡狸 卍里 Watanuki Banri?)Voiced by: Takuya Eguchi
Tenant of Room 1, Banri is a mixed blood Tanuki demon with an impulsive streak and is very outspoken. Labeling himself a "delinquent", he considers Soushi his rival because he called him cute, causing Banri to resent him. His SS agent is Zange.
Zange Natsume (夏目ざんげ Natsume Zange?)Voiced by: Mamoru Miyano
The assigned SS agent to Banri, Zange is a half-human, half-demon wearing a set of black rabbit ears on his head. He is a very cheerful individual, gaining a fondness for Soushi and calling him "Sou-tan" because of this.