Cabernet, Merlot, Pinot Noir.....
With over 5,000 varieties of wine around the world; they appear here as beautiful girls!

A variety of unique heroines are intertwined with various happenings!
A Heartwarming comedy full of wine relations in a 4-koma format!

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...

Rakka Ryuusui is a 4-koma yuri comedy, and the setting is that of the kyūdō club in the school and its members.

Hinata is a student at a prestigious all girls private school and looks up to Tsugeyama Saki, the shining star of the school. As the younger sister of Saori, the head mistress of the school, Saki is the most popular girl at school with her warm personality, beauty, top academic skills and is pretty much the perfect girl.

Hinata suddenly learns that her parents got extremely into debt, fled the country and pretty much left her out to dry. The headmistress Saori, out of compassion and seeing Hinata's importance to the school, makes Hinata an offer to become a butler in return for providing room and board for her. Not having much choice, she accepts and is assigned to none other than Saki. Hinata soon finds out that Saki puts on a façade at school and is not the perfect girl everyone thinks she is.