Everything But The Rain June Truth | 12 :

Following her battle with the Hollow known as "White," Masaki suffered from "Hollowfication," a process that threatened to destroy her soul.

: To save Masaki, Isshin Shiba (the 10th Division Captain) agreed to be bound to her soul using a special Gigai. This required him to permanently sacrifice his Shinigami powers to act as a counterweight to the Hollow essence within her.

: The procedure was successful. Isshin lived as a human in the World of the Living, eventually opening the Kurosaki Clinic and marrying Masaki. 2. The Truth of June 17th (Masaki’s Death) 12 : Everything But The Rain June Truth

Learning this "June Truth" allows Ichigo to understand why he was able to survive past encounters and why he was initially rejected by the Soul King's palace. This knowledge is essential for him to reforge his Zanpakutō and achieve his true potential in the war against the Wandenreich.

: Kisuke Urahara proposed a radical stabilization method. Following her battle with the Hollow known as

: On that specific day, Yhwach (the Father of the Quincy) performed the "Auswählen" (Holy Selection). He forcibly stripped "impure" Quincy of their powers to restore his own strength.

Isshin reveals to Ichigo that Masaki should not have died during the encounter with the Hollow . : The procedure was successful

: Because she was infected by a Hollow, Yhwach deemed Masaki impure. Losing her powers mid-battle left her defenseless, leading to her death while protecting Ichigo. 3. Identity Revelations for Ichigo