Rurouni Kenshin, Volume 25: The Truth

Kujiranami, the giant whose right arm Kenshin severed during the Bakumatsu, escapes from prison and goes on the rampage. Armed with a frightening new weapon, the police force is helpless against this behemoth's wrath. One warrior has the courage to stand up to him: Myojin Yahiko, Kenshin's youthful ward and Kaoru's only student in Kamiya Kasshin-ryu.
While it's true that Yahiko's skill has increased, will he alone be able to stop a deranged Kujiranami? If Kenshin doesn't do something quick, this will certainly by Yahiko's greatest - and last - battle!