Under Soi Fon's gaze as if she were looking at human trash, Bambietta ultimately submitted under Yoru Machi's various threats and inducements, revealing quite a bit about the Wandenreich and the Quincies' weaknesses.
With the intelligence she provided, the Development 01 Bureau also developed a drug called "Shadow Invading Medicine" to counter the Quincies' ability to absorb Bankai.
Simply put, the "Shadow Invading Medicine" was made using Hollow abilities. Quincies, as a race with absolutely no resistance to Hollows, regarded everything related to Hollows as deadly poison.
The principle behind the "Shadow Invading Medicine" was to have Soul Reaper captains absorb a portion of Hollow power and Hollowfy their own Bankai.
This way, when Quincies absorbed a Hollowfied Bankai, it was equivalent to absorbing a poisoned Bankai, which would directly cause their abilities to fail.
Within the Shadow Domain of the Wandenreich, after learning that the "Shadow Invading Medicine" had been successfully developed, Yoru Machi and Aizen prepared to make their move.
The two had not rashly attacked the Wandenreich before because they wanted to obtain more useful intelligence and were concerned whether the Soul Reaper captains' Bankai could be restored after killing the Quincies who had absorbed them.
But now that such concerns were gone, they could naturally attack without restraint.
As the two special war powers suddenly invaded the Ice Palace, the Wandenreich immediately descended into chaos. Even Yhwach, who had originally been sleeping, was forced to awaken.
Schrift C: Pernida, Schrift D: Askin, Schrift M: Gerard, and Schrift X Liltotto Lamperd were Yhwach's four elite guards.
Together with Schrift A Ishida Uryu and Schrift B Haschwalth, who were also Yhwach's right-hand men.
Those six had originally been the forces he prepared to deal with the defenders of the Soul King Palace, but he had no choice but