C397 Lan Ran Paid Him a Visit
Currently, Kisuke Urahara had taken out the Hōgyoku. Due to the conversation between Su Ze and Aizen, Su Ze's strength, and Su Ze's unknown background, Kisuke Urahara had a lot of doubts about him, and regarded Su Ze as one of the two main threats.
It might be very difficult for Aizen to take the Hōgyoku away from Kisuke Urahara's hands, but it could also be very simple