Lie of the Unohana took the materials list. As the captain of Squad Four (the Medical Squad), she immediately discerned the formula's authenticity after seeing the annotations behind the various materials.
Unohana Lie had three purposes for coming here. The first was to determine Su Xiao's intentions, and the second was to confirm his abilities. After confirming those two points, she would negotiate with Su Xiao.
Researchers like Su Xiao, if truly recruited into the Seireitei, should normally be assigned to Squad Twelve (the Research and Development Squad) and placed under Nemu Kurotsuchi's jurisdiction. However, Su Xiao produced medicines, so there was no problem with placing him under Unohana Lie's jurisdiction instead.
Or rather, once Unohana Lie confirmed Su Xiao's abilities, she had come to "snatch him away." The Gotei 13 seemed to be a single entity, but each squad was actually responsible for different functions.
Squad Two was the Punishment Force, mainly handling matters within the Seireitei. Its captain was named Soi Fong. Squad Three was the Support Squad and rarely went out to carry out orders proactively. Squad Four and Squad Five were the Medical Squad and Rescue Squad, and they often worked together.
It was worth mentioning that Sōsuke Aizen was the captain of Squad Five (the Rescue Squad). He had a high reputation within the Seireitei. After all, whenever Soul Reapers encountered danger, Squad Five was responsible for rescuing them.
No one should think the Rescue Squad was weak. It was an extremely powerful squad. As for Squads Six through Ten, they were responsible for matters within the Seireitei: the Noble Exclusive Squad, the Inner Court Guard Squad, the Intelligence Squad, the Prison Squad, and the Patrol and Security Squad.
As for Squad Eleven, it was a very interesting squad. Or rather, it was filled with