denkigai no honya-san characters Umanohone Bookstore

Hiotan 

Voiced by: Natsumi Takamori

Hiotan is a part-time clerk at Umanohone. Her nickname comes from the fact that she is not an otaku, but is interested in yaoi. Unlike the others, she does not know much about anime. Hiotan acts innocent towards things that are perverted, but admits that she is "someone who really likes porn books." She is easily embarrassed and often teased by Kantoku, whom she has a crush on.

Sensei

Voiced by: Minami Tsuda

Another clerk at Umanohone, Sensei is an aspiring mangaka under the pen name "Jonatarou" . Her nickname comes from the fact that she aims to become a great mangaka. Along with Sommelier, she is an avid reader of manga. Compared to Hiotan who is feminine, Sensei always dresses haphazardly, as she is not confident with her appearance and "girl meter". When getting tired over work, she becomes childish and has Hiotan calm her. She has a crush on Umio.

Fu Girl 

Voiced by: Ayana Taketatsu (anime), Mako (drama CD)

One of the female clerks at Umanohone, Fu Girl is a 16-year-old high school girl who has the appearance and voice of shy girl but can talk very harshly. She's obsessive with zombies and even has prepared if one day there's a zombie outbreak. She sees Umio as person who sacrifices himself in a zombie outbreak and become one thus, she becomes violent to him. She has a crush on Sommelier. Her nickname comes from her obsessiveness towards zombies while her real name is Koharu Yatsu .

Kameko

Voiced by: Mai Aizawa

One of the female clerks at Umanohone, Kameko is a girl with obsession over cameras. She often captures pictures of Umanohone and its staff, but she has no confidence at being taken by camera as she stated that she is "not one of the spotlight". Her nickname can be also means turtle, explained the keychain on her camera. Kameko also seems to dislike when people try to take her hat off, as seen by Kantoku. She has a crush on Kantoku.

Umio

Voiced by: Ryōta Ōsaka

Newest employee of Umanohone. The straight man of the group that hasn't been given a nickname (and when they made one, it does not stick with them), though he becomes a different person when it comes to manga and anime, particularly 2D girls. He is a fan of "Jonatarou" and usually helps her with her manga. He is also a fan of Tsumorin. He and Sensei might be taking liking at each other. He has a younger sister who is a fujoshi.

Kantoku 

Voiced by: Yoshitsugu Matsuoka

Another clerk of Umanohone. He often records his employees on his video camera, especially Hiotan, and he got his nickname because he wanted to become a film director. He likes teasing the other employees, particularly Hiotan and Umio. He has a boob and underwear fetish. He used to be in a relationship with Tsumorin and according to her, Kantoku will teasing and be mean but sometimes nice to the girl he likes. It seems that he and Hiotan have taken a liking to each other.

Sommelier

Voiced by: Takahiro Tomita (anime), Tomokazu Sugita (drama CD)

A tall man with a big figure, Sommelier is another clerk at Umanohone. He has a profound knowledge of manga, and can match people to the suitable manga for them to read. A "Sommelier Meeting" is regularly held where he recommends manga to a lot of people. He is popular with the ladies. He was classmates with Erohon G-Man in elementary school. He later confessed his love to Fu Girl and they started dating.

Manager

Manager of Umanohone. In the anime, he only appears at every next episode preview and is seen talking only at the first and last episode.