Bleach Volume 5

In an effort to prove that the Quincies, are better than Soul Reapers, Uryū challenges Ichigo to a competition to destroy the most Hollows. But Uryū's lure attracting hundreds of hollows into Karakura Town, end up dangering many of Ichigo's friends. Chad is forced to fight a hollow in order to save Karin, gaining the ability to see hollows while manifested armor over his right arm. At the same time, protecting her friends from another hollow, Orihime develops her own power: the Shun Shun Rikka sextet of fairies that emerge from her hairpins. Chad and Orihime manage to defeat their respective opponents, losing consciousness as each is saved by Urahara.

Right Arm of the Giant
Contains chapters 35 - 43.