Arc 9Unohana’s Last Battle
Shiraishi tried to keep Retsu Unohana from dying in her planned fight with Zaraki, while a murder and forged evidence pushed the noble clans toward conflict. The stretch ended with Shiraishi and Unohana still fighting in Muken as Tokinada’s scheme advanced at the Tsunayashiro gathering.
- Shiraishi learned Unohana had been the First Kenpachi and devised a date with her to make her reconsider her death wish, enlisting Isane, Rangiku, and Nemu to help.
- Shiraishi took Nayura to visit Ryū in the Maggot’s Nest, then rescued Rangiku after the Stealth Force arrested her for carrying contraband perfume.
- Shiraishi went on a date with Unohana, who saw through his attempt to drug her and later kissed him, triggering a fever from the eight-leaf grass.
- Shiraishi met Unohana again and urged her not to die fighting Zaraki, while Yamamoto described the accusations dividing the Kuchiki, Shihoin, and Tsunayashiro clans.
- After Ginjiro was murdered, Shiraishi detained Byakuya when he attacked Yushiro at the Shihoin residence, while Tokinada prepared to exploit the clan dispute.
- Kaoru Tendō and Oniyasha ambushed Soi Fon, and Kaoru knocked her unconscious after revealing that the Oniyasha seen in East Rukongai had been a clone.
- Shiraishi intercepted Zaraki and showed Unohana Yamamoto’s order authorizing him to take Zaraki’s place, then fought her with his Hollow-like Bankai and regeneration.
- Shiraishi used the perfume to make Unohana lose their fight, but she attacked him again, and their battle continued in Muken as Yushiro signed Tokinada’s concealed document.