To break Naraku's barrier, Inuyasha must strengthen the Tetsusaiga by making it absorb the blood of a bat-demon protecting its nest with a strong barrier.
Season: 1
Totosai's Rigid Training
Inuyasha visits Totosai for some help on making Tesusaiga strong enough to destroy Naraku's barrier.
Three-Sided Battle to the Death
Naraku tries to absorb Muso back into his body.
Kakashi: Sharingan Warrior
With Kakashi free, the fight between him and Zabuza resumes. Kakashi decides to show Zabuza what the Sharingan is really capable of. Can Kakashi's Sharingan defeat Zabuza? And who is the mysterious person watching the fight?