"Flower, Sun, and Rain" was conceived, directed, designed and co-written by studio founder Goichi Suda. Production began in 1999 following the release of "The Silver Case", the studio's debut title. Multiple staff from "The Silver Case" returned, including co-writer Masashi Ooka and character designer Takashi Miyamoto. Returning composer Masafumi Takada co-wrote the score with Shingo Yasumoto. The PS2 version remained exclusive to Japan, while the DS version received an international release. The original version was positively reviewed, but the DS release received mixed to negative reviews from critics.