吉田（由星津和由纪子配音）是一个非常普通的上班族。在公司里，他有一位备受钦佩的前辈后藤爱理（由金寿子配音），吉田已经暗恋了他5年。最后，有一天，当吉田鼓起勇气向后藤说出自己的感受时，他遭到了非常直率的拒绝。吉田绝望而沮丧，只能借酒浇愁。
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.
玄奘三藏是河里飘来的弃儿，被金山寺的光明三藏法师抚养长大，也因此受尽了寺中僧侣的岐视。师父遇害使他的心灵受到了巨大打击，也由此养成孤僻叛逆的性格。三藏孤傲不羁，追求自由，不愿受到任何束缚，他想找到绝对的坚强和力量来守护自己重要的东西。
