Kenshin and Aoshi engage in a battle on the deck of the ironclad Rengoku. Behind the scenes, Sanosuke manages to board the ship and tries to blow up the engine room with the explosives he got from Tsunan. However, Shishio's underlings Hoji, Shuzo, Toshiro prevent him from going any further. Meanwhile in Kyoto, Arato faces off against Kamatari and Henya alone to buy time for the police forces to evacuate.

The engine room of Rengoku. Hoji manages to catch the explosives and prevents the room from blowing up. However, Sanosuke delivers the Mastery of Two Layers to the ship's Kingston valve, flooding the perimeter. Meanwhile, Usui reveals himself to Kaoru, Yahiko, and Misao as Arato faces off against Kamatari and Henya. Goichi begs for Megumi's help at her clinic to heal Tokuji, his younger brother. As these passions clash with each other in all places of Kyoto, a small, over-looked fire begins to flare up.