While Byakuya allows his squad to hold a hanami at his mansion, two strange attackers, one that is masked and the other resembling a satyr, arrive, but the masked one is quickly defeated by Sode no Shirayuki and Senbonzakura, who among all zanpakutō have since rematerialized, while the satyr one escapes. Mayuri refers to these attackers as "sword beasts", which are zanpakutō whose masters have been killed. Rukia and Sode no Shirayuki try luring out the satyr sword beast by having a drinking party, but fail. Soon, Rukia and Sode no Shirayuki find the satyr sword beast attacking and eventually defeat him together, capturing him and turning him in for study. Ukitake and Kyōraku become concerned at this development, noting that the Seireitei is still being rebuilt.