Romance between swordsmen, based on a true-life adventure of a young girl determined to be a part of history. In the 1860s in Japan, a new era is dawning. During this time fraught with violent social upheaval, samurai of all walks of life flock to Kyoto in the hope of joining a band of warriors united around their undying loyalty to the shogunate system. This group becames one of the greatest (and most infamous) movements in Japanese history...the Shinsengumi! Sei, who has disguised herself as a man in order to fight with the Shinsengumi, is badly injured in a surprise attack. Her secret love, Soji, is haunted by the incident and Sei's role in saving his life. As he starts to fall hard for Sei, his behavior becomes so unreasonable that Saito says he is unfit to serve as vice captain! Meanwhile, Captain Kondo returns from a disappointing trip to Hiroshima while some of his closest colleagues conspire against him...