Renji's Zanpakuto Zabimaru, consisting of Monkey and Snake, are irritated over the fact that Byakuya's Senbonzakura is taking all the credit for their work. Later, a small accident leads to the three Zanpakuto becoming trapped inside the Department of Research and Development's facility. As they try to find a means to escape, the two Zabimarus find Senbonzakura to be ..