Chiyo immediately remembered the Life Forbidden Technique she had been developing.
She looked at Sasori, who was touching his parents' puppets and sinking into profound despair.
"Sasori, I can change this ending. I've been trying to bring your parents back to life."
Liao Wu was delighted. He'd finally gotten it out of her.
The Sasori inside Liao Wu's body listened intently, too.
"Bring them back? Impossible! My parents have been dead for almost ten years."
Chiyo glanced around, then closed the door, looking like she was meeting a secret agent.
"Sasori, I'll tell you about the Forbidden Technique I've been developing. I've named it Life Reincarnation."
"It's a Forbidden Technique that converts all your Chakra into life force, allowing puppets to gain life."
Life Reincarnation hadn't originally been created to bring people back from the dead. It was meant to give puppets souls and life.
Chiyo had developed the Forbidden Technique to ease Sasori's pain over losing his parents, by giving the "Father" and "Mother" puppets souls and life.
She couldn't bring Sasori's parents back directly, because they had already been buried and their bodies had turned to White Bones.
For various reasons, Chiyo had never succeeded.
First, the "Father" and "Mother" puppets were Wooden Puppets, not Human Puppets, and they didn't have Sasori's parents' features.
Trying to summon their souls from the Pure Land through the puppets was pure fantasy.
Second, Chiyo was only one person. Even if Life Reincarnation could theoretically bring people back to life, she could only revive one person. Which would it be, his father or his mother?
Chiyo leaned toward reviving her own son, but she was also afraid Sasori might grow up without a mother and go around the village calling everyone "Mom."
In the Original Work, Chiyo had been able to revive