Raikō

Raikō is a false faith healer and an anime-exclusive villain in Rurouni Kenshin.

In the anime, one of the Hishimanji Guren gang seemingly falls ill from a stomach ache, and Dr. Megumi doesn't help him (as she only cares for the genuinely sick). Then Raikō appears saying he would use magic to heal the injured gang member. After seemingly enchanting his water, he feeds it to the gang member.

Raikō teams up with the Hishimanji gang to bankrupt the doctors of the town, including Megumi.

He spreads false rumors to make the townspeople angry towards Megumi. When Kaede falls ill, Raikō promises to heal her, but in reality is swindling the parents. When Megumi confesses that her expertise can save Kaede, the Hishimanji henchman with the stomach ache appears; he was really faking the pain.

When Megumi moves to save Kaede, Raikō tries to stop her, only to be punched by Sanosuke, giving him genuine internal injuries. Raikō then tries to protest his mansion's destruction as the Hishimanji gang is using their cannon.

Megumi agrees to save the false healer, but on the condition he admit to the public that he was a con artist all along.