Aizen’s absolute control over his reiatsu, and why Ichigo’s lack of mastery prevents him from passively destroying weaker beings in Bleach.
Bleach fans need to trust in Aizen and re-read the chapter where Askin defeats Ichigo because there's an obvious explanation ...
There are a lot of key moments in the Conflict arc, and all of them change everything fans know about the Thousand-Year Blood ...