The Resolution to Kill
Ichigo's battle between Renji gets serious, but Ichigo will never give up on his journey to rescue Rukia. Ichigo starts to remember his training with Urahara. His training with Urahara helps him find out ways of finding weaknesses for certain attacks. His training also reveals the resolve that he should have that would help him beat Renji.
Aired 10/05/2005EP 31 - The Resolution to Kill

Bleach
Ichigo Kurosaki is a rather normal high school student apart from the fact he has the ability to see ghosts. This ability never impacted his life in a major way until the day he encounters the Shinigami Kuchiki Rukia, who saves him and his family's lives from a Hollow, a corrupt spirit that devours human souls.
Wounded during the fight against the Hollow, Rukia chooses the only option available to defeat the monster and passes her Shinigami powers to Ichigo. Now forced to act as a substitute until Rukia recovers, Ichigo hunts down the Hollows that plague his town.