Kirigakure Shura -

: Her refusal to have a child is her ultimate act of rebellion. By choosing not to provide a new vessel for the contract, she essentially chooses to end her bloodline to stop the cycle of suffering.

Her relationship with is the emotional anchor of her story. Kirigakure Shura

: Shiro didn't just train her to be a Knight Meister ; he was the first person to tell her that she deserved to actually live for herself, not just to fulfill a contract. : Her refusal to have a child is

Shura’s "deep" content is centered on her tragic lineage. According to the Ao no Exorcist Wiki, she is a descendant of a female ninja clan that made a deal with the snake god . Kirigakure Shura