The Swooping Descent of the Dark Emissary! The Propagation of Malice

While tracking the arrancar, Rangiku and Shouta discover that its song can force souls to walk towards it, and that it can multiply itself without limit. A researcher from the twelfth division reveals that another arrancar is creating the copies, explaining their inability to die. The Soul Reapers defeat all of the arrancars, and Shouta finds the person he was searching for, that being his sister Yui. More clones from the arrancar attack, and Yui runs to the park, where Shouta admits that he abandoned her out of fear.