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!

After Hijikata grows suspicious of Soji's feelings about Sei, he reassigns Sei to the third troop under Saito's command. Soji, puzzled by his own recent irrational behavior toward Sei, attempts to distance himself from her. Sei, in turn, interprets this as Soji's realization of her feelings for him and decides that she can no longer serve as a bushi alongside him. She goes to visit Suigetsuni, a nun who knew Sei in her former life as a girl, to discuss renouncing the world and entering the convent!