As Kenshin tries to stop the slaughter of the Christians as they march towards martyrdom, Sanosuke is unable to avert the death of Shogo's terminally ill sister.
When the Peace Force comes across a man posing as Kenshin, everyone else wants the impostor exposed. But Kenshin notes that he's been using his profits to care for a group of orphans.
After their search leads them to the hidden cure, the leader of the Black Knights makes it clear that he has no intention of honoring his promise to cede control of Japan to the Sanada Ninjas.
As Aoshi arrives to bring her home, Misao joins Kaoru and some friends for a final shopping spree. However, Sanosuke and Yahiko's efforts to keep an eye on the women lead to them to be mistaken for a pair of thieves.
Following a series of accidents in town, a master of feng shui blames an imbalance in the Ki, a force which keeps all of nature's other forces in balance.
As Kenshin learns of a battle between the Wind and Water families for control of the Ki, efforts to build a railroad are exposed as a Water clan plot to control Japan.
With help from the Wind family's leader, Kenshin saves Kaoru's life. But the Water family's quest to redirect the Ki and gain control of Japan moves ahead as planned.