Ep. 165: The group learns Naraku stole the Fuyouheki to hide his heart's aura while Hakudoshi attacks for Miroku's crystals.
Aired on September 6, 2004

165
Inuyasha and his companions learn from Gakusaijin that Naraku has stolen the Fuyouheki from him. He gives crystals of his demonic aura to Miroku to allow Inuyasha's group to locate his stolen gem, thus finding Naraku. Kohaku encounters Kikyo, who is taken by surprise by Naraku, hiding his demonic aura with the Fuyouheki. Inuyasha and his companions arrive just in time to drive off Naraku. The Fuyouheki was stolen because Naraku wanted to hide the demonic aura of his detached heart (The Infant), so Kikyo tells Inuyasha that she must find the heart of Naraku to end this trouble. Hakudoshi creates an experimental series of soulless demons to attack Inuyasha's group to steal the crystals from Miroku.
Episodes
- Ep. 161 · Miroku confronts his past with Shima while Sango questions his fidelity
- Ep. 162 · Rin Chooses Sesshomaru After Demon-Hunting Monks Attack Cave
- Ep. 163 · Kirara visits her village and meets Kohaku in a secret lily garden
- Ep. 164 · Shippo Becomes Host to a Parasite and Turns Against His Friends
- Ep. 165 · The group learns Naraku stole the Fuyouheki to hide his heart's aura while Hakudoshi attacks for Miroku's crystals.
- Ep. 166 · Investigating Goryomaru's Temple After the Slaying of Demon Mountain Gakusaijin
- Ep. 167 · Kagura reveals the Infant's secret while Inuyasha uses the final Shikon Jewel shard to defeat the stone demon.