Ikkaku's Bankai! The Power that Breaks Everything
Ikkaku continues his fight with the Arrancar. The Arrancar is forced to unshealth his Zanpakutou after Ikkaku hears his boast about having steel skin. Keigo asks why Yumichika doesn't help, and learns that Ikkaku is having fun fighting. Ikkaku is able to switch hands between scabbard and sword, surprising the Arrancar who thinks he uses simple tactics. Arrancar releases his Zanpukutou, Volcanica, and reveals his name, Edorad Leones (Arrancar Thirteen). Meanwhile, Grimmjow easily cripples Rukia, leaving only Ichigo. Edorad explains that the Arrancar's zanpakutou is the opposite of the Shinigami's and allows the Arrancar to reach their true forms. Ikkaku is blown off with a single strike of Volcanica. Yumichika calls Soul Society and requests special freezes around each Shinigami to protect nearby souls, in addition to preparations for Ikkaku's military funeral. Meanwhile, Ikkaku releases his shikai but is still smashed to the ground by Edorad. Edorad is about to finish of Ikkaku when the Shinigami releases his Bankai, Ryuumon Houzukimaru (Dragon's Crest, Demon Light). Ikkaku's Bankai is a strength type that gets stronger as it cuts or gets cut, shown by the dragon that turns red in his center blade.
Aired 07/03/2007EP 118 - Ikkaku's Bankai! The Power that Breaks Everything

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.