Rurouni Kenshin #20: Soulless Knights

Yutaro Tsukayama, after being wounded during a revolution on the Izu Peninsula, set off for Germany in search of a way to heal his arm. On his last day, he promised to return and finish his duel with Yahiko. Now Yutaro has landed on the Japanese coast once again, rejoining Karou and the others as a member of the Kamiya Dojo. However, Yutaro is not the only new arrival in Japan. A mysterious order of Germanic soldiers has followed him, each skilled in the medieval arts of warfare and combat. They bring with them a new threat, one Kenshin and Yutaro must prevent at any cost!

Episodes:
83- Yutaro Returns
84- The Sanada Ninja Squad and the Elixir
85- A Straying Journey
86- A Heat Wave from Beneath the Earth