Hostage Situation and Battle
Koga kills Ginkotsu, but Suikotsu and Jakotsu take Rin hostage to lure Sesshomaru. In the ensuing battle, Kikyo reverts Suikotsu to his doctor persona with a sacred arrow, and Jakotsu kills Suikotsu to steal his shard. Inuyasha's group helps Koga recover from his injuries in a cave, but Renkotsu traps them in a river of fire.
Renkotsu's Attack and Inuyasha's Struggle
Inuyasha fights Renkotsu near the river without his robe, and Kagome uses it to save the group. Renkotsu attempts to kill everyone with dynamites, but Inuyasha pushes him out of the cave. Afterward, Inuyasha returns to Koga and Kagome. Meanwhile, Miroku and Sango notice Naraku's aura in a cave where the purification barrier doesn't reach.
Final Confrontations and Revelations
Inside the mountain, Kagura attacks Miroku and Sango, separating and incapacitating them. Miroku risks his life to save Sango, succumbing to venom but recovering as they move back into the purifying barrier. Inuyasha, transformed into his human form, enters the mountain alone, evading Renkotsu and Jakotsu. Miroku and Sango find the temple with the mummified and living Buddha, Saint Hakushin.