Bleach fans need to trust in Aizen and re-read the chapter where Askin defeats Ichigo because there's an obvious explanation ...

But now, Ichigo was wearing his powers in full control and a smile on his face. Zangetsu was no longer this evil entity he had to keep in check. Zangetsu was now fully a part of him, he was him.

One day, he meets Rukia Kikuichi, a "Soul Reaper" who hunts evil spirits ("Hollows"). Injured in a battle, Rukia passes her powers ("Zanpakutō," manifested as a sword) to Ichigo. While Rukia ...

The forensic psychiatrist involved in the case noted eerie similarities between Yad-Elohim's behaviour and a scene from Bleach where Ichigo Kurosaki, a Soul Reaper, battles evil spirits.