Bleach Volume 58

The person Yamamoto battled was actually Loyd's twin brother Sternritter "Y" Royd Lloyd as the real Yhwach was visiting Aizen in the underground prison beneath Squad One's barracks in an attempt to recruit him. Acting in haste, Yamamoto loses his Bankai to Yhwach who quickly incinerates him. Yhwach orders his right hand Sternritter "B" Jugram Hashwalth to pull their forces back as Ichigo finally arrived and makes a beeline towards Yhwach. But Ichigo is quickly defeated by Yhwach, who damages the Substitute Soul Reaper's Zanpakutō while leaving him with the revelation that Ichigo's fight with Quilge awoke a connection between them. After the Wandenreich flee and have left the battlefield, the Soul King's' Royal Guard, also known as Squad Zero, arrive and takes Ichigo, Rukia, Byakuya and Renji back to the Soul King's Palace. And even Ichigo's broken Zanpakutō in it's bankai state, Zangetsu. Afterwards, the new Head-Captain Shunsui Kyōraku arranges for Kenpachi to fight Unohana, so that he can unlock his Zanpakutō's full power.

The Fire
Contains chapters 510 - 520.