Ep. 84: The Sanada Ninja Squad and the Elixir
Aired on May 5, 1998Filler

84
A notebook reveals the divine elixir can cure any illness, prompting the Black Knights to seek world domination. The Sanada Ninjas propose an alliance to gain control of Japan. The protagonists travel to Suwa Shrine at Lake Suwa to locate the elixir. They consult a priest about the shrine's history. The Sanada Ninjas attack the group but retreat to their base after being bombarded by the Oniwabanshuu. The Black Knights inform the Sanada Ninja that they will act once the protagonists find the divine elixir.
Episodes
- Ep. 80 · Kenshin faces the Beni Aoi assassins while Itsuko is kidnapped by the group.
- Ep. 81 · Kenshin Investigates Kaishu's Hidden Money and the Beni Aoi Threat
- Ep. 82 · Kaishu Katsu's Determination to Stop Tetsuma's Desperate Actions
- Ep. 83 · Yutaro Tsukayama returns to the dojo with Professor Hans while the Black Knights attack him.
- Ep. 84 · The Sanada Ninja Squad and the Elixir
- Ep. 85 · The group seeks the elixir in a cave while Yahiko recovers from dehydration.
- Ep. 86 · The group faces elemental hazards and elite ninja interference while seeking the elixir.
- Ep. 87 · Schneider defends Misanagi from Melders while Kenshin defeats Ren and Baku in the cave.
- Ep. 88 · Kenshin defeats Melder in a burning garden while Lentz secures elixir samples.