School Babysitters

Students

Ryūichi Kashima (鹿島 竜一, Kashima Ryūichi)

Voiced by: Kōtarō Nishiyama^[2]

He and his brother Kotaro lost their parents in an airplane accident, leaving them orphaned. They are taken in by Morinomiya in exchange of him helping with the school's babysitter club. A kind-hearted and friendly boy who easily befriends people around him. He greatly loves his little brother Kotaro and would do anything for him, trying his best to support him, although he does miss his parents. He takes a liking to the babysitting activities, and all the infants that are drawn to him.

Hayato Kamitani (狼谷 隼, Kamitani Hayato)

Voiced by: Yūichirō Umehara^[2]

A boy in Morinomiya Academy, the son of Kamitani Shizuka a science teacher in the school, and Taka's older brother. He becomes friends with Ryuichi and often hangs with him as one of his closest friends. He is mostly expressionless, quiet and rarely says more than strictly needed. Although he often smacks Taka in order to have him behave (which becomes a recurring running gag), in reality Hayato loves and cares deeply for his brother, although he never openly states it towards him. He eventually joins the babysitting club as an official member, doing activities in there and in the baseball club.

Maria Inomata (猪又 まりあ, Inomata Maria)

Voiced by: Satomi Akesaka^[3]

A student in Morinomiya Academy's Special Class. She's a very studious girl but is socially awkward. Although she can be blunt and sometimes offensive, she's not a bad person at heart; she rather finds it difficult to interact with people believing studying hard is all she excels at, and can become saddened rather easy, which shows a rather sensitive person behind. She gains a crush on Ryuichi to which he's oblivious, and recurrently interacts with the babysitting club and its children. She is liked by the kids, although her stern demeanour can scare them at times.

Tomoya Yagi (山羊 朋也, Yagi Tomoya)

Voiced by: Toshiyuki Someya^[3]

A second-year student in the Morinomiya Academy Advanced Class. He is a handsome and kind-hearted boy who is very popular with the girls. He has a passion for cute children, but gets nosebleed whenever he interacts with them, which makes him appear like a pervert.

Chūkichi Nezu (根津 中吉, Nedzu Chūkichi)

Voiced by: Motohiro Ōta^[3]

A schoolmate of Ryuichi and an old friend of Tomoya Yagi with shaggy black hair hanging over his eyes. His sloppy appearance belies his dedication as a student and hard worker, and his caring personality. He has several younger brothers and sisters, and although normally not allowed, he has gotten permission to work at a part-time job to support his family.

Yuki Ushimaru (牛丸 雪, Ushimaru Yuki)

Voiced by: Kaede Hondo^[3]

A kind but painfully shy young girl and one of Ryuichi's classmates. She has developed a crush on him, but cannot bring herself to profess her feelings to him. Although actually a love rival with Maria Inomata, she gradually begins to consider her as her best friend.

Hiroyuki Inui (犬井 博幸, Inui Hiroyuki)

Voiced by: Yoshimasa Hosoya^[4]

A somewhat pushy highschool boy who seeks to win the heart of Yukari Sawatori, despite the fact that she is happily married. Later on he gets a crush on Ryuichi when he mistakes him for a girl while the other boy is wearing a wig. In his initial appearance he is shown to dislike children, but he acquires somewhat of a soft spot for them as time passes. At one point Usaida bribes him to watch over Kotaro while the toddler embarks on his first errand, and he keeps his anonymity by wearing a bag over his head.

Children

Kotarō Kashima (鹿島 虎太郎, Kashima Kotarō)

Voiced by: Nozomi Furuki^[2]

Ryuichi's younger brother. Kotaro is a toddler who sticks with his older brother and deeply loves him. He is taken care of in the babysitter club where he gets along with the other kids his age. He is overall the most quiet of the infants, and is often expressionless in dangerous or even comical situations.

Taka Kamitani (狼谷 鷹, Kamitani Taka)

Voiced by: Yūko Sanpei^[2]

The younger Kamitani brother and one of the children in the daycare. Boisterous and stubborn, his attitude often puts him at odds with his older brother and occasionally other children. Although he may never admit it himself, he deeply cares for his older brother and aspires to be like him.

Takuma Mamizuka (狸塚 拓馬, Mamizuka Takuma)

Voiced by: Ayaka Saitō^[5]

One of the Mamizuka twins. Takuma is a very cheerful and outgoing toddler and is rarely seen without a smile on his face.

Kazuma Mamizuka (狸塚 数馬, Mamizuka Kazuma)

Voiced by: Atsumi Tanezaki^[5]

The second of the Mamizuka twins. Unlike his brother, he his very shy and prone to tears at the best of times. He is very close to Takuma and is rarely seen without him. Unassertive, he often copies or finishes Takuma's sentences.

Kirin Kumatsuka (熊塚 奇凛, Kumatsuka Kirin)

Voiced by: Konomi Kohara^[5]

The oldest toddler in the daycare. Smarter than her peers, she speaks relatively eloquently and politely, although she is not above getting into shenanigans herself. She is rarely seen without her favorite giraffe plushie.

Midori Sawatori (猿渡 美鳥, Sawatori Midori)

Voiced by: Kaede Hondo^[5]

The youngest child in the daycare. She is often carried on the back of one of the babysitters, usually Usaida.

Tsugumi (つぐみ)

Hayato and Taka's cousin. He arrived at the babysitting club after his mother got sick and was bedridden.

Parents/ Guardians

Yōko Morinomiya (森ノ宮 羊子, Morinomiya Yōko)

Voiced by: Tomoko Miyadera^[5]

The Chairwoman of Morinomiya Academy who lost her son and daughter-in-law in the same accident that killed the Kashima siblings' parents. Witnessing them during the funeral, she decides to take them both under her care under the condition that Ryuichi helps with the babysitter club, providing him with a house and school. Although she tends to be strict and work driven, she reveals a softer side to herself in time, constantly monitoring the siblings and caring for them in her own way. Her most striking feature is her abundant hair, which Kotaro claims seems "shaggy" and calls her that as a nickname.

Keigo Saikawa (犀川 恵吾, Saikawa Keigo)

Voiced by: Daisuke Ono^[5]

Youko's butler and attendant. He watches over the siblings and treats to their needs. Totally unfazeable (a stereotypical butler trait), he reacts with dry humor to any peculiarities he chances upon.

Yoshihito Usaida (兎田 義仁, Usaida Yoshihito)

Voiced by: Tomoaki Maeno^[5]

A caretaker in the babysitter club. He is most of the time seen sleeping on the job and is shown to have a rather demotivated behaviour, claiming this is because the chairman is stingy. Although he doesn't seem to work more than what is strictly required, he does seem to care for the kids and Ryuichi.

Yayoi Kumatsuka (熊塚 ヤヨイ, Kumatsuka Yayoi)

Kirin's mother is a cold-looking but caring woman teaching Drama at Morinomiya Academy.

Satoru Kumatsuka (くまつか さとる, Kumatsuka Satoru)

A freelance photographer Kirin's father and Yayoi's husband. He is very protective of his daughter Kirin, while forbidding her from kissing or getting close to any of the boys at the daycare, especially Kotaro as the two are very close—even though they are both toddlers. Satoru also becomes extremely jealous whenever his wife Yayoi speaks to someone of the opposite sex. He is a very bubbly person whenever his daughter is around and is always seen with a digital camera in his hand to take pictures.

Yukari Sawatori (沢渡 ゆかり, Sawatori Yukari)

Midori's mother, a school secretary at Morinomiya Academy, is a gentle beauty who is married to a loving but often-absent archeologist.

Yutaka Sawatori (猿渡 豊, Sawatori Yutaka)

Midori's father and Yukari's husband. His job as an archaeologist often keeps him away from home on expeditions; his face is rarely shown and the lower part of his face is usually covered up with a huge beard-(in the manga, his entire face is visible without his beard). He has a deep booming voice in the anime series making him sound like someone much older than he actually is.

Umi Mamizuka (狸塚 うみ, Mamizuka Umi)

Voiced by: Ayaka Saitō

Kazuma and Takuma's mother. She is a P.E. teacher at Morinomiya Academy. She shares a cheerful personality with her son Takuma and often comforts her more timid son Kazuma, as well as her equally timid husband.

Kousuke Mamizuka (狸塚 恭介, Mamizuka Kousuke)

Kazuma and Takuma's father. He's also a famous actor and is very popular with his fans. However, his fame has come at the cost of not being able to see his sons as often as he would like, resulting in Kazuma and Takuma's estrangement from him. With Ryūichi's encouragement, however, he was eventually able to overcome that barrier. He is a crybaby and contrary to his actor persona, he is very shy and very emotional but also very kind. It's common for him to appear in sketchy disguises.

Shizuka Kamitani (狼谷 しずか, Kamitani Shizuka)

Hayato and Taka's mother and the ex-wife of Taizo; she has a laid back personality but she does love her children. She's a science teacher at Morinomiya Academy.

Taizou Hebihara (へびはら たいぞう, Hebihara Taizo)

Hayato and Taka's divorced father and the ex-husband of Shizuka. Just like Hayato, he very expressionless but he has a more frightening appearance than his oldest son. He's very strict and has zero tolerance when comes to his students, often marking them as absent even if they are only a few minutes late for school, especially if they're unable to reply and forcing them to do chores under harsh deadlines even during their free time. He's a chemistry teacher at Morinomiya Academy.

Manga

The manga has been published by Hakusensha, and in LaLa's magazine since 2009, and as of 2018, 17 volumes have been released in Japan.

Anime

A 12-episode anime television series adaptation by Brain's Base aired between January 7 and March 25, 2018 on Tokyo MX, Sun TV and BS11.^[6] The series is being directed by Shūsei Morishita with scripts written by Yuuko Kakihara and music by Ruka Kawada.^[7] Crunchyroll is streaming the series.^[8]