Kaze Hikaru, Vol. 20

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!
Hijikata decides to make use of Kamiya's feminine features and sends "him" out dressed as a woman on a spy mission. Her assignment: to ascertain the whereabouts of the notorious enemy leader Sakamoto Ryoma. Soji, left in the dark about the secret mission, sets off to find Kamiya. The two get more than they bargained for when they come face-to-face with the enemy himself!