Rukia Kuchiki & Yasutora Sado vs. Shrieker

Rukia Kuchiki & Yasutora Sado vs. Shrieker is a battle involving Rukia Kuchiki and Yasutora Sado against the Hollow named Shrieker after Sado acquires a cursed cockatiel whose previous owners have all died horrible deaths (the bird actually being the container for the spirit of a dead child placed there by Shrieker as bait). It is Sado's first fight against a Hollow despite his inability to see it and Rukia's first fight with Sado.

Prologue
A few days after Ichigo Kurosaki becomes a Shinigami, Sado is talking with his friends Gitano Shigeo and Harutoki. Harutoki explains that he has come upon a cockatiel. He offers the bird to both of them as he is scared to have it. The bird is apparently cursed as all of its owners had died horrible deaths. As Shigeo tells Sado to not take the offer, a enormous steel beam suddenly falls on them. Sado, however protects his friends by catching the beam with his back. As both Shigeo and Harutoki express their concern, the bird thanks Sado for saving him and gives its name while asking for Sado's name. Sado responds back.ref>Bleach manga; Chapter 7, pages 1-4 The next day, Sado goes to school and brings the cockatiel with him. Ichigo, Rukia and their friends learn that Sado has apparently taken several injuries. Ichigo notices that the bird has a spirit inside of it. Rukia also notices but tells Ichigo to not worry, thinking it is probably a lonely spirit and nothing dangerous. She does tell Ichigo that it should be sent to the afterlife tonight as it could become a Hollow. Later that day, Ichigo encounters Sado again who has come into the Kurosaki Clinic because of serious injuries on his back. Upon seeing Sado's injuries, Ichigo immediately senses that the injuries come from that of a Hollow. Sado is laid down to rest but runs away from the Clinic with the cockatiel while Ichigo confirms with Rukia that Sado's wounds feel to be from a Hollow. . After learning that Sado is gone, Ichigo leaves with Rukia to try and track him down. As Ichigo expresses his frustration that they will only be able to find Sado after the Hollow has attacked, he comes up with the idea to track Sado down by sensing the spirit's reiryoku that dwells inside the bird. Although Rukia tries to tell Ichigo that it cannot be done, Ichigo quickly surprises her by using reiraku. Sado is then revealed to be hiding in a factory. As he converses with the spirit on whether they finally escaped from the Hollow, Sado senses that the Hollow found them. He tells the spirit that he will definitely save the spirit's mother. Sado then encounters Rukia and Ichigo but runs from them. While Sado runs, the two also come upon Karin Kurosaki. Rukia offers for Ichigo to take Karin home while she gives chase after Sado. . Rukia gives chase after Sado and

Battle
As

Aftermath
Ichigo Kurosaki comes in to