A young girl who moves into the Kafuu residence. As a part of a work/study program for her new school she helps out at their café Rabbit House. She is quite keen on cute things, consider Chino to be like a little sister to her, and is more talented than she thinks herself to be.
In episode 9, she goes to the park to help look for Aoyama's lost fountain pen. She looks under a bench without any luck. Later when she spots a rabbit, she chases after it, completely forgetting about looking for the pen.
In episode 10, she starts spouting off prime numbers. She gets into the thousands, then turns her head, notices a picture album, and gets distracted by that. Sharo wonders how she gets so easily distracted.
Big Sister Instinct: Considers Chino to be her surrogate little sister much to the latter's initial annoyance.
Cloud Cuckoolander: About as much as you can get. In one example during episode 7, she asks Chiya where Sharo lives. Then she, Chino, and Rize see Sharo coming out of the house right next to Chiya's cafe. After Chino tries to apologize for assuming she was Secretly Wealthy, Cocoa instead asks where Sharo's house is at. Sharo ends up having to point to the very house she just came out of.
Cool Big Sis: She tries to act like one. Though it doesn't work very well on Chino, Megu seems to buy it.
Cuddle Bug: Seems to have a thing about cuddling Chino and Tippy, which disturbs them both.
The granddaughter of the Rabbit House's owner and third generation barista. A soft spoken girl who slowly warms up to Cocoa, though is often annoyed by her insistance on being called 'big sister'. Along with her father, she is the only one who knows the secret concerning Tippy and her grandfather
Green-Eyed Monster: Just a very subtle one, but in episode 6, Chino feels left out when her two school friends, Megu and Maya, spend a lot of time with Cocoa and Rize at the Rabbit House. When she tells Chiya about it, the latter notices the former is unaware of the feeling of loneliness when she saw all of them like that.
Nice Hat: And the few times she doesn't have Tippy on her head, she's often wearing her school uniform's hat instead.
The Quiet One: Always speaks in a soft voice. Lampshaded when Lize tries to teach her to speak commandingly so as to create a presence that will make up for her lack of height, and Chino can just barely raise her voice above her usual volume.
One of the waitresses at the Rabbit House. The daughter of a soldier, she has a very disciplined, military-like personality, however she is still very kind. She even carries a Glock and combat knife hidden on her person, but she is shown to having a strong feminine side as well, such as being vulnerable to cute things, and her appearance. Sharo and her go to the same school, though Rize is in a higher grade.
Crazy Survivalist: She carries a loaded pistol and a combat knife with her, always thinking about things in a militaristic way, and sees everything as survival training.
I Just Want to Have Friends: Rize, at the end of the day, hears Cocoa mentioning wanting to help Chino make dinner. She thinks to herself that it sounds fun, and later tells her toy rabbit that it's not like she's lonely or anything like that when talking about Cocoa.
Lonely Rich Kid: Hinted at in her jealousy of Chino and Cocoa living together and her near manic happiness when she is hanging out with her friends outside of work.
Ms. Fanservice: Reasonable given she is the bustiest of the cast. Her cleavage was deliberately shown twice in Episode 5, both when she was changing, while Male Gaze was in full force during episode 8 after she changed into her swimsuit.
Cocoa's classmate at high school, whose family runs a Japanese sweets cafe, Ama Usa An, which has its own rabbit mascot named Anko and use to be rivals with Rabbit House. She has been friends with Sharo since they were very small. She also has a strange tendency to give really long complicated names to common snacks.
Crouching Moron, Hidden Badass: In episode 5, she seems uncoordinated when practicing with Cocoa, but shows amazing ability to dodge objects being tossed at her. She even hit a volleyball hard enough to knock out Cocoa, but passes out from exhaustion herself.
Deadly Dodging: Seems to be a passive ability based mainly on luck, but the girl can't be hit by any thrown object.
The Gadfly: Likes playing tricks on her friends, especially Sharo.
The Nicknamer: Likes to name dishes more than making sweets, which often confuses customers.
Nightmare Fetishist: Judging by how she acts when she brings it up, its quite possible scary stories turn her on.
Romantic Two-Girl Friendship: When Sharo is feeling down because she's all alone at an elite school for rich girls, Chiya cheers her up by saying that even though they go to different schools they can still hangout as much as they want and that they will always be friends well into adulthood.
When Sharo gets a cold in the final, Chiya takes care of her and refuses to leave until Sharo has fallen asleep despite Sharo's worry she catch the cold. Infact Chiya says she hopes she does get it, because there is a saying that you can get rid of a cold by giving it to someone else.
Secret Keeper: She's the only one who knows where Sharo lives(her workplace is adjacent to Sharo's house) and what Sharo's actual social class is. And Sharo would like to keep it that way.
When Sharo is finally found out in episode 7, Chiya laments that she feels a little sad, since they no longer have this shared secret.
Chiya childhood friend who lives next to the Ama Usa An. She attends the same elite school as Rize, whom she is in love with, as a scholarship student, but is otherwise quite poor. She also has a slight fear of rabbits and becomes increasingly hyper after drinking coffee, her emotions differing depending on the blend. She works a Fleur de Lapin a herbal tea café with slightly risky uniforms and fliers.
Cuteness Overload: Seeing Rize in a middle-school uniform breaks her mind for a little bit.
Drunk on Milk: After drinking one cup of coffee, she gets extremely hyper. She has stated that her caffeine tolerance is low, hence why she avoids coffee. Cocoa takes advantage of this in episode 5 when practicing for a sports festival.
Growling Gut: Happens a couple of times to her, mostly because she can't afford to buy much food and sometimes goes long stretches without eating as a result.
Mock Millionaire: She actually doesn't play this trope up. However, the other girls assume she must be rich, because of the fact that she's very pretty and seems to have good mannerisms as one would expect someone with a privileged upbringing to show. She's too embarrassed to admit this to them however, especially towards Rize.
The other girls accidentally find this out in episode 7, but despite Sharo's worries they don't think any less of her.
The Ojou: Averted, while Cocoa and Chino think she is rich, due to her looks and way of talking, she is actually pretty poor.
Why Did It Have to Be Snakes?: She is deathly afraid of rabbits and becomes petrified upon spotting one. Unfortunately for her, rabbits seem to love her.
Vitriolic Best Buds: She has a lot of fear towards Anko, Chiya's pet rabbit, because he bit her when she was young, but nowadays if the two are in the same room you can bet he will end up on top of her head... after chasing her around a bit.
A female English Angora rabbit, and Rabbit House's mascot, Tippy is Chino's pet, and is usually seen sitting on top of her head. She's also her grandfather, though how this happened is one of the series' biggest mysteries.
Cat Smile: Perpetually. Justifued as she's a rabbit.
Cool Old Guy: He supports his granddaughter and gives her advice when she is feeling lonely. He was also the one who inspired Aoyama to become a writer.
Deadpan Snarker: He tends to make snarky remarks from time to time, especially towards anything Cocoa says.
A novelist. Some of her novels have been adapted to film. She knows and is greatly indebted to Chino's grandfather.
Ambiguously Gay: She is somewhat obsessed with Rabbit Houses "Master", Chino's grandfather, but she also says things like how she enjoys working in cafés because she can watch the girls and not seem suspicious, which she says while trying to look up Sharo's skirt. In the manga, she was immediately kicked out of Fleur de Lapin, and in the next comic she did the same thing with Cocoa who is relaxing in a park.