|Written by||Ikki Sanada|
|Magazine||Manga Time Kirara Max|
|Original run||2006 – 2015 February|
|Written by||Hiro Akizuki|
|Illustrated by||Ikki Sanada|
|Published||July 27, 2007|
Rakka Ryūsui (落花流水?) is a Japanese 4koma manga written and illustrated by Ikki Sanada. The series began its serialization in Manga Time Kirara Max in 2006. The main character is Akiho Hayama, and the story is about her comedic days at the kyūdō club at Sakuraba Girls' High School (桜庭女子高校? Sakurabajoshikōkō), an all-girls school. The series ended on February 19, 2015 with a final 9th volume release on the March 27, 2015.
After learning that she had passed the entrance examinations to enter the Sakuraba Girl's High School, Hayama Akiho, while attempting to escape from club recruitment staff, experiences love at first sight when she meets the president of the kyūdō club, Hokaze Minatsu. Akiho joins the kyūdō club after her first meeting with Minatsu, becoming friends with her and other club members. The story progresses throughout the school year, showing characters move up a year and in later volumes introducing new characters.
- Akiho Hayama (葉山秋穂? Hayama Akiho)
- Voiced by: Mai Nakahara
- Akiho, the heroine, is a first year student (currently second year) at Sakuraba Girl's High School and a member of the kyūdō club. She sports a ponytail with her long, dark hair, which is tied with a red ribbon. She has a deep affection for the kyūdō club's President, Minatsu, and is often depicted as sprouting animal ears and tail when around her, and frequently nosebleeds, indicative of her perverted feelings toward Minatsu. Akiho possesses a decent level of skill in her archery, once being able to shoot four arrows such that they were connected by the shafts, She has since been promoted to shodan rank in kyūdō. Although her apartment does not allow pets, she secretly keeps a cat named Moka (もか Moka) found by Minatsu.
- Minatsu Hokaze (帆風水夏? Hokaze Minatsu)
- Voiced by: Aya Endō
- A second year student (currently third year) at Sakuraba Girl's High School, she is Akiho's senpai and President of the kyūdō club. She is widely popular amongst the girls in the school, to the extent that the riot police had to be called in during Valentine's Day. She is skilled at kyūdō, possessing the rank of yondan, and she once won the local competition with a perfect score. She also has an obsession over cute creatures (especially cats), to the extent of purchasing all reading material pertaining to cats as well as donning cat ears.
- Haruka Kusaba (草葉春河? Kusaba Haruka)
- Voiced by: Yuki Matsuoka
- A classmate of Akiho, she has med-length golden hair, and speaks using Kansai-ben. Her kyūdō abilities are odd and the results of her shots are unpredictable, she prefers moving targets. She performs poorly in academics, and resorts to giving gifts in hopes of appeasing her teachers.
- Mafuyu Shimotsuki (霜月真冬? Shimotsuki Mafuyu)
- Voiced by: Tomoko Kaneda
- A chemistry teacher at Sakuraba Girls' High School, and subsequently the homeroom teacher of Akiho, Haruka and Akatsuki's class in their second year. She is the advisor of the kyūdō club, but she is not that skilled at it. She is childishly innocent, but she speaks very politely. She has the appearance of a 7-year old grade schooler with brown hair, tied on the left side of her head. Though the reasons for this is unknown, she apparently has a license to cook fugu.
- Yū Gojyō (五条夕? Gojyō Yū)
- Voiced by: Miyuki Sawashiro
- Introduced in the second year of the story, she is a third year student that transferred into the high school, and is a soft-spoken individual. She sports long, blonde hair with a cowlick, with the hair by her ears reminiscent of animal ears. She possesses a weak body, and has a weak pulse.
- Akatsuki Ayase (綾瀬暁? Ayase Akatsuki)
- Voiced by: Hitomi Nabatame
- Introduced in the second year of the story, she is a second year student and the Archery Club's ace. She is a classmate of Akiho and Haruka. She has short dark blue hair, and wears short athletic tights under her school uniform. She is a childhood friend of Yū, and immediately rushes to Yū's side should something happen to her. One of her grievances is that she is completely flat-chested, and once attempted to increase her bust size along with Akiho following bad advice from Mafuyu.
Rakka Ryūsui is written and illustrated by Ikki Sanada, it is currently being serialized in the Japanese mangazine Manga Time Kirara Max published by Houbunsha starting in 2006. Rakka Ryuusui is a 4-koma Yuri comedy, and is set in a kyūdō club in an all-girls high school.
- Erica Friedman (December 6, 2006). "Yuri Manga: Rakka Ryuusui". Retrieved November 30, 2007.
- "落花流水ノベル 花落知多少～花落つること知る多少～". Retrieved September 4, 2009.
- "落花流水 バラエティＣＤ" [Rakka Ryuusui Variety CD]. Retrieved September 4, 2009.