PROLOGUE
Spring has come once again in Gensokyo, and instead of the usual flowers blooming, flowers from every season are coming up at the same time. The heroines realize something ood is going on when they see this thick layer of flowers covering much of Gensokyo, and soon head out in search of answers, whether out of curiosity, duty, or boredom.

GENERAL STORY
Starting off somewhere near the Misty Lake next to the Scarlet Devil Mansion, the heroines set out and soon encounter the other characters. Battling them in succession, they eventually reach those who have the answers, Komachi Onozuka and Shikieiki Yamaxanadu.