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…