The story of the movie is somewhat based on the plot of the most recent game, "Sakura Wars 3," released back in March this year. While the game features Lieutenant Ohgami, the main character who takes off for Paris, narrates one side of the story, the movie unveils the secrets behind Hanagumi. Ohgami leaves for Paris, consequently leaving Hanagumi without a leader; thus a new character will be introduced here. To be replaced with Lieutenant Ohgami is the former leader of Hoshigumi, Rachette Artile - a rationalistic and distinct individual, who brings about serious problems to Hanagumi. The members are now in discord with Rachette. Meanwhile, Teikoku Kagekidan was being threatened by some irrelevant demons and a new type of anti-kouma mechas, (brought by an american company) appears and tries to replace the koubu-kai. Having made repeated mistakes due to the absence of Ohgami, Hanagumi is now faced with an unprecedented danger, while the abolishment of Teikoku Kagekidan Hanagumi is being schemed.
Nishikichi在去一家软件公司兼职的路上发生了事故，她从车上下来的美女那里交了100万日元。我知道那个漂亮的女人是前方字节的美容总裁。。。
在繁华城市的夜晚，古董从拥挤的电车里冒出来。血腥屠杀后，古董们带着信乃（桥本爱配音）逃走了，但被后面冷漠残忍的换衣服女孩小叶（水木奈奈配音）斩首。随后，两名年轻女孩和另一群人被“塔”追捕。
