Bleach , titled "Koga's Rebirth" (or "Kouga to be Revived!!!"), is part of the Zanpakuto Unknown Tales filler arc. It originally aired on November 24, 2009. Episode Summary
It is revealed that Muramasa’s primary goal was never to liberate the Zanpakuto, but to use Yamamoto's spiritual pressure to break the seal on his master, Koga Kuchiki. Bleach Episode 248
Struggles against the intense heat of Yamamoto's flames while trying to reach Muramasa. Kouga to be Revived!!! - Bleach Episode 248 Live Reaction Bleach , titled "Koga's Rebirth" (or "Kouga to be Revived
Successfully manipulates the Zanpakuto spirits to achieve his master's freedom. Bleach Episode 248