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. In time, this group would become one of the greatest (and most infamous) movements in Japanese history... the Shinsengumi!

Warfare between the Choshu and the Bakufu factions seems inevitable. Will Sei and the Shinsengumi be drawn into the hostilities as well? Meanwhile, Captain Harada Sanosuke's first child is born in Kyoto. While the Shinsengumi members are overjoyed, trouble arises when Sanosuke names the child...