Under Urahara Kisuke's treatment plan, Isshin Shiba resolutely gave up his Soul Reaper powers, transferring all of them into Masaki Kurosaki's body to help her suppress the Hollow within her.
Having lost his Soul Reaper powers, Isshin Shiba became an ordinary man after entering the Gigai Urahara Kisuke had made for him.
The same was true for Masaki Kurosaki.
Her Quincy powers, together with Ichigo Kurosaki's Soul Reaper powers, suppressed the Hollow power that was constantly growing within her.
This situation changed greatly after Ichigo Kurosaki was born.
It seemed that the three powers within Masaki Kurosaki had all been passed into Ichigo Kurosaki's body, allowing Isshin Kurosaki's Soul Reaper powers and Masaki Kurosaki's Quincy powers to gradually recover.
Yet because two additional powers now existed within her, Masaki Kurosaki's bloodline was no longer pure.
After Yhwach activated the "Schrift," Masaki Kurosaki was judged to be a mixed-blood Quincy and became a sacrifice for Yhwach to restore his power.
Faced with Yhwach's "Schrift," neither Isshin Kurosaki nor Urahara Kisuke had any way to save Masaki Kurosaki.
Moreover, because she had become Yhwach's sacrifice, Masaki Kurosaki's soul was directly absorbed by Yhwach and never made it to Soul Society.
Otherwise, Ichigo Kurosaki might truly have had a chance to meet his mother in Soul Society.
"It's all right. I know."
"Kurosaki-san, given the current situation, are you still going to refuse me?"
Urahara Kisuke stepped forward and stood beside Isshin Kurosaki, looking at Masaki Kurosaki's gravestone before them.
"Ichigo possesses the powers of a Soul Reaper, a Quincy, and a Hollow. He was born strong."
"Kurosaki-san, whether in Soul Society or the Human World, the future will be dangerous."
"Only sufficient strength can protect everything one holds dear."
"In the Seireitei, whether it is Aizen or the hidden mastermind creating Reikaku,