Bleach Episode 251 Here

Ginrei Kuchiki (Byakuya’s grandfather) and Captain-Commander Yamamoto intervene to stop Kōga. During the battle, Kōga tries to call upon Muramasa, but his voice no longer reaches the spirit.

The Zanpakutō spirit who originally rebelled to save Kōga, only to be mistreated by his master. Bleach Episode 251

After being framed for the murder of his own comrades, Kōga escapes confinement. Consumed by rage and a desire for revenge, he begins a killing spree, targeting both those who wronged him and innocent bystanders. Kōga tries to call upon Muramasa