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
Despite the Soul Reapers' efforts, Muramasa succeeds in releasing the seal. The episode ends with the reappearance of Koga Kuchiki, Byakuya's ancestor, who was sealed away centuries ago for his rebellion. Key Characters & Events Bleach Episode 248
Appears to be siding with Muramasa, though his true intentions remain a focal point of mystery during this arc. Bleach , titled "Koga's Rebirth" (or "Kouga to be Revived
In this episode, the conflict against Muramasa and the manifested Zanpakuto spirits reaches a critical point as the true antagonist, , is revived. Bleach Episode 248
Successfully manipulates the Zanpakuto spirits to achieve his master's freedom.