Set in St. Michael's Academy (Mikajyo), the games follows the yuri relationships and romance between various girls. While most of the games focus just on a single couple, some of the newer titles feature multiple couples. The uniforms for the high school students are auburn colored, with a white sailor collar, and a black bow tie; while the uniforms for the middle school students are light pink, also with a white sailor collar, and a red bow tie; the uniforms for The Next Generation series are white, with a black sailor collar-(complete with a matching black skirt), and a red bow tie as well.
Main series
Nanami Oda (織田 七海, Oda Nanami)
Voiced by: Fuyuka Toiro (First Game), Yumi Haruna (Second Game), Nana Yasaka (Third Game), Konoko Takanashi (Fourth Game)
A first-year high school student at St. Michael's, she's lighthearted and energetic with an outgoing disposition. Currently romantically involved with Yūna, an upperclassman. A fair young lady with a fair bit of knowledge in matters of love (though not from personal experience) who's quite prone to daydreaming. Her head is always full of romantic thoughts for Yūna! Surprisingly stubborn, and is usually involved in trifling arguments, even with her partner Yūna. She has such a lovestruck disposition that her discovery that Yūna is actually nothing like how she imagined only caused her to fall that much harder for her. She is known to be a troubled young girl with an underdeveloped chest and a squishy belly, who's madly in love with her Onēsama.
Yūna Matsubara (松原 優菜, Matsubara Yūna)
Voiced by: Pochi Uchino
A second year high school student at St. Michael's and chairman of the Environmental Protection Committee (a group that's functionally the student council), and the proud daughter of parents who are directors of large hospitals all over Japan. A somewhat soft-spoken intellectual beauty with a gentle disposition to boot. A busty girl who excels in sports, and all around superwoman. A campus idol, naturally adored by her juniors (and even by her seniors), while seemingly totally oblivious to that fact. And yet She's actually a rather spoiled, dirty-minded girl. Also the type of person who isn't satisfied unless she puts all her heart and soul into something.She's the Chairman of the Environmental Preservation Committee which functions essentially as the student council, and the proud daughter of parents who are joint directors of a major hospital. Although fairly easygoing, she's both beautiful and intelligent, and has a gentle disposition to boot. With athletic prowess and enormous breasts, she's an all-around perfect superwoman.
Reo Kawamura (川村 玲緒, Kawamura Reo)
Voiced by: Hana Anzu
A second-year student and classmate of Mai Sawaguchi. Coming from a long line of affluence on her mother's side, she's what you might call a sheltered girl. Reo herself is socially inept and has a fear of strangers, Reo is known to have a very short stature with a fairly childlike body, her long fluffy silver hair and refined facial features form an adorable combination that makes her incredibly popular. However, unfriendly to everyone except Mai, she's a hyper-tsundere who's like a wild beast in some ways. Both her parents are living overseas, so she lives alone in a big apartment.
Mai Sawaguchi (沢口 麻衣, Sawaguchi Mai)
Voiced by: Ayaka Izumi
Another second-year student and one of Reo's classmates, she's grown up at St. Michael's, having attended since kindergarten. Her parents are an average working couple. She doesn't hold any particular title in her class; however, due to her helpful big sister-like personality, others have a tendency to rely on her. A "commoner" in her own words. She's spent so much time at St. Michael's, she's gotten quite accustomed to dealing with high-class young ladies. It's that self-confident attitude that makes her so popular with others, and it's not unusual for her to receive love letters from under and upperclassmen alike. She has two younger siblings a brother and a sister
Kaede Kitajima (北嶋 楓, Kitajima Kaede)
Voiced by: Nazuna Gogyō
A second-year student at St. Michael's and Mai Sawaguchi's childhood friend, a talented girl who serves as class representative. Her glasses and braided hair give off a relatively subdued image. Although meek and subdued by nature, she has a strong sense of duty, and her classmates have complete confidence in her. Her tall stature and large bust make for a very attractive figure. However she's actually quite gorgeous without her glasses and side braid, and she's now somewhat of a celebrity. She and her younger cousin Sara are an officially recognized couple on campus, a relationship that has even Kaede actively showing affection
Sara Kitajima (北嶋 紗良, Kitajima Sara)
Voiced by: Satsuki Uri
A first-year student at St. Michael's and Kaede's younger cousin. A student model, well-known from fashion magazines. Her mother is an actress, making her a true thoroughbred. She has an incredibly bright and sociable disposition. With her appearance and personality, she has a charismatic temperament that causes her to unwittingly charm those around her. She's what you might call an open book, and has a kind of natural innocence. Her affection towards Kaede is in full overdrive, both publicly and privately. The way she clings to and loves on Kaede in front of others with such a serious expression tends to make the other students jealous of their closeness.
Runa Hōraisen (蓬莱泉 瑠奈, Hōraisen Runa)
Voiced by: Yuki Ueda
A recent transfer student to St. Michael's Middle School and Takako's lover. Highhanded and domineering with the disposition of a queen, she speaks and carries herself like an adult, and has everyone around her wrapped around her little finger. She doesn't hesitate to say, "Sensei belongs to me," in front of her classmates and friends and yet with her self-centered personality, she cares little for what others have to say. She's quite possessive when it comes to Takako, but rather than impulsively losing her temper, she seems more likely to quietly threaten. Essentially a bit of a sadist, one way or another, she'll interpret things to her own advantage and then smile with a sadistic gracefulness. Since her parents whereabouts are unknown, Runa previously lived with her sister in a large apartment until she moved in with her teacher.
Takako Suminoe (墨廼江 貴子, Suminoe Takako)
Voiced by: Yui Azuma
High school graduate and one of the school teachers in the elementary department at St. Michael's Christian School , before becoming a school teacher she was a shy young schoolgirl who had an innocent crush on her senpai Rena (aka Runa's older sister). Being given her first homeroom assignment a number of years into her career, she's romantically involved with one of her students, Runa Hōraisen. Currently living with Runa, as the adult she tries to teach Runa to act more childlike, but instead, she's the only one who ever ends up doing what she's told. Be that as it may, she doesn't harbor any ill will towards Runa for being so assertive, and occasionally even admires the way she carries herself with such distinction. Rather, she has to desperately resist the urge to come out by reminding herself, "That girl is your student!". Before meeting Rena, she lived with her mother and her unknown brother.
Miya Ayase (綾瀬 美夜, Ayase Miya)
Voiced by: Nerine Akimoto
A student of the Year 1 "Snow" class, and a classmate of Risa's. A prominent genius on campus, but has difficulty in social situations. Doesn't really take issue with people other than Risa, and socializes as little as possible.
Whenever she speaks with Risa it's always abusive, but she's actually covering her own embarrassment. Her speech and behavior always keep others at a distance. She rarely shows her soft side and is unflappable. When she does show her soft side, she becomes timid and casts nervous glances from beneath her lashes. Although you wouldn't guess it from the way she talks, her behavior is actually quite ladylike. Possessing one of the most prominent intellects on campus, she has been offered the chance to study abroad and even skip grades, but she hates interacting with others, so she enrolled in the not particularly academically demanding school for high-class girls.
Risa Azumi (安曇 璃紗, Azumi Risa)
Voiced by: Kuroi Neko
Class Representative of the Year 1 "Snow" class, and a classmate of Miya's. Has an earnest and hardworking personality. As a hard-nosed person, she often finds herself in leadership positions. She's what you might call a high-class tsundere girl.
While she naturally does well academically and has common sense, whenever she gets into it with Miya, she always gets outreasoned and frequently stomps her feet. Having an unusually strong sense of shame, she gets flustered and briefly digs herself into a hole when thrust into a romantic relationship. The half-Japanese daughter of a foreign company with a British mother. Built like a model, and the owner of enormous breasts.
Rikka Shinozaki (篠崎 六夏, Shinozaki Rikka)
Voiced by: Madoka Midorikawa
A first-year student at Saint Michael's Academy for Girls who was admitted from outside the school system on a scolarship. An athletic girl who became a celebrity overnight after setting a new national record in the 100 meter dash shortly after her enrollment. On top of all that, her personality is such that she can't help but intervene whenever she sees someone in trouble, which has made her extremely popular. Serving as Vice Class Representative, she and Class Representative Sayuki were voted as a Best Couple, and due to her dependable nature she's come to be known as "Snow White's Knight." But it seems she has some sort of relationship with Risa.
Sayuki Shirakawa (白河 沙雪, Shirakawa Sayuki)
Voiced by: Yun Sachi
Rikka's fellow classmate. Both beautiful and brilliant, she's a talented scholar and athlete who was selected to serve on the Environmental Preservation Committee. Holding such a resounding reputation since middle school, she's being hailed as the first "Ultimate Lady" since the days of alumna Hōraisen Rena. Her grandfather is descended from samurai who are rumored to have owned a castle, so owing to her name, she's earned the moniker "Snow White." In the wake of the... scandal? involving Rikka and Risa, will she become the center of even greater attention?
Eris Shitogi (粢 エリス, Shitogi Eris)
Voiced by: Mio Ōkawa
A third year student at St. Michael's Junior College, she's Shizuku's girlfriend and an exchange student from Russia. Originally enrolling in St. Michael's as a transfer student, she's half Japanese and half of Nordic descent. She's proficient in Japanese and was formerly the famed proprietor of the Lily Platinum fan club. She's currently doing a home stay with Shizuku's family while the two of them attend junior college. She still makes Shizuku turn briefly tsundere whenever she speaks passionate words of love to her without any regard for who might be listening. She has a strong rivalry with Reo.
Shizuku Kirishima (霧島 雫, Kirishima Shizuku)
Voiced by: Miei
A third-year student and Japanese beauty who's grown up at St. Michael's, having attended since grade school.
Having a calligrapher for a father, Shizuku herself is highly regarded as "Shizuku-gozen," the scribe of St. Michael's. Her character is one of sincerity and excellence; however, she's exceedingly bad with foreign words. In a loving relationship with the exchange student Eris, Shizuku is always at the mercy of that outspoken girl, whether others are around or not. While naturally she could never hate Eris, her troubles never seem to end. With a young widowed calligrapher for a father, she was once revered as "Shizuku Gozen." Her no-nonsense personality is one of distinction, although she's exceedingly bad with foreign words. She's in an openly public relationship with Eris, the former exchange student, and the two of them are currently attending St. Michael's Junior College together.
Rena Hōraisen (蓬莱泉 麗奈, Hōraisen Rena)
Voiced by: Kō Manazuru
Another school teacher at St. Michael's. Runa's older sister and Takako's former classmate and tutor. Stylish and stunningly beautiful — the perfect girl. Outgoing and easygoing. Although she's blunt and untidy, for some reason she has the kind of likable personality that's impossible to hate. An alumnus of St. Michael's (women's junior college), at the time, the teachers and students all praised her for being a well-behaved young lady. But in actuality, she was chasing skirts left and right, regardless if they were seniors or juniors. It's rumored her lovers numbered at nearly a hundred.
Yūno Katakura (片倉 優乃, Katakura Yūno)
Voiced by: Yuka Meriru
An extreeemely pushy and overprotective girl who is in her first year of nursing school. Satsuki's classmate and dormmate. Has a soft, feminine disposition. Fairly protective, she always speaks formally, with a deference to others.
Her overbearing disposition stems from her “What would you do without me?” attitude toward the frequently troubled Satsuki.
Satsuki Ishigami (片倉 優乃, Ishigami Satsuki)
Voiced by: Hana Anzu
A brilliant, but frank and aloof girl with boyish tendencies.
What you would call an aloof mystery. Up front and self-assured. She always speaks in a masculine way.
Although she's never had much interest in eating, Yuuno has been using her home cooking to draw her out more, so that she'll be straightforward with her expressions of affection, regardless of their surroundings.
She also makes an appearance in Yuririn.
Ringo Aihara (相原 りんご, Aihara Ringo)
Voiced by: Shiori Honno
An energetic, aspiring young girl. A first-year student in nursing school and graduate of St. Michael's. A hardworker who always maintains excellent grades.
She's family friends with Chiaki, who is a nurse and teacher, and has admired her since they were little.
Taking her acceptance to nursing school as an opportunity to become independent from her parents, she's begun living with Chiaki in her apartment.
Chiaki Takao (高尾 千秋, Takao Chiaki)
Voiced by: Koko Ichinose
A picture perfect nurse... But she's actually pretty spoiled. She's both a nurse in the gastrointestinal surgery ward at Saint Michael's General Hospital as well as a nursing instructor.
With Ringo being accepted to nursing school, Chiaki offers to take her under her wing, and the two begin living together in her apartment. Ordinarily she's a flawless model of a woman, but at home, she has surprisingly little concern for herself; in some ways, she's a bit of a wreck.
Akira Inatori (稲取 晶, Inatori Akira)
Voiced by: Suzune Asao
Narumi Hikawa (氷川 成美, Hikawa Narumi)
Voiced by: Hikari Hoshino
Aya Kimishima (君島 亜弥, Kimishima Aya)
Voiced by: Yūki Kondō
A second-year middle school student who transferred from public school, she and Ai are identical twin sisters. With a bright and cheerful disposition, she has a little bit of a submissive streak. She has romantic and sexual feelings for her older sister Ai.
Ai Kimishima (君島 藍, Kimishima Ai)
Voiced by: Nao Tsubakino
Aya's elder twin sister, and the class mascot. While typically meek and docile, she's actually very willful and childish, and won't budge once she's set her mind on something. She is so clingy that the rest of the class treats them like they're a couple.
Hazuki Onohara (大野原 町葉月, Onohara Hazuki)
Voiced by: Satoru Tanaka
A clumsy transfer student who was admitted in the second term at the annex school. She makes no attempts to hide her humble roots. She's well-liked by everyone in school.
Manami Suō (蘇枋 愛実, Suō Manami)
Voiced by: Shiina Amane
A sheltered teenage girl with an air of grace and refinement. Her true personality comes out through her internet idol persona "MANA" (マナ), where she's appears cruel and abusive; and is seen wearing a short black lingerie dress with matching gloves, silk stockings, red glasses, and her hair is propped up into a side ponytail.
Nagisa Misawa (三澤 渚, Misawa Nagisa)
Voiced by: Ichika Mikazuki
The star of the school's track and field team, who's always surrounded by fans. She and Rina have been best friends since they were little, and they can often be spotted together.
Rina Takahata (高幡 莉菜, Takahata Rina)
Voiced by: Ayase Tomari
A spoiled and pushy princess. But for some reason, everybody loves her. In class, she's treated like an actual princess. She has a particular fondness for Nagisa.
Kaori Hanemura (羽村 佳織, Hanemura Kaori)
Voiced by: Eri Kitamura
Kaori is a tsundere who can't be honest about her deep love for Amane. She lives next door to Amane and goes to Saint Michael's Girls Academy together. Very responsible and straightforward. She fulfills the tsukkomi role very well. However, when Amane's repeated loving advances breaks down her tsundere wall, she becomes very cute and doting. She's not that good at cooking, but at least it's better than Amane.
Koharu Uozumi (魚住 小春, Uozumi Koharu)
Voiced by: Misa Tokushima
Koharu is the mascot character among the four friends. Soft-spoken and pure, she emits an iyashi-kei charm that captures Makoto's heart. She thinks she is too childish and hence, greatly admires Makoto since she is so much more mature than her. She is a wonderful cook (especially sweets) and very handy around the house, so she would make a great housewife.
Makoto Tōdō (藤堂 真琴, Tōdō Makoto)
Voiced by: Mami Uchida
The most mature of the group, Makoto is normally very cool and reserved. However, she is a girl after all and is weak for cute things, like Koharu. Dreams about being with Koharu a lot.
Yūki Amane (結城 あまね, Amane Yūki)
Voiced by: Yui Sakakibara
Amane is basically the opposite of Kaori (her next-door neighbor). She's airheaded, very lively, glomps Kaori at every opportunity and generally lazy. She fails at studying and cooking, and would rather stay up playing games than anything else.
The first title in the series, A Kiss for the Petals was released on November 25, 2006. As of September 2015, fifteen games and two spinoff titles have been released. The fifteenth game in the main series, Remembering How We Met, which was initially released in Japan on Android and iOS, was licensed by MangaGamer and released in English for PC on September 25, 2015.
The Angels series is a spin-off involving select couplings of nurses of the corresponding St. Michael's General Hospital. These releases can be identified with a blue coloring.
A series featuring students from the annex school. It can be identified by the color green in the subtitles.
A light novel series written by Shinichirō Sano and illustrated by Peko is being published by Luminocity. The first volume was released on August 19, 2007 and since then, there have been a total of fourteen volumes released.
On December 22, 2007, three drama CDs were published, containing stories with the characters from the first six games. On November 27, 2010 a fourth drama CD was announced.
An anime OVA titled Sono Hanabira ni Kuchizuke o: Anata to Koibito Tsunagi (その花びらにくちづけを: あなたと恋人つなぎ, lit. "A Kiss for the Petals: Becoming Your Lover") was produced by chuchu studios, directed by Masayuki Sakoi, and was released in Japan on July 30, 2010. Based on the third game, it follows Mai and Reo after they confess their love to one another. To coincide the release of the OVA, the third game was re-released with some improvements and typographical error correction.
