Sasori uses the Iron Sand to clog the joints of Lady Chiyo’s puppets, rendering her "Father" puppet useless and forcing her into a desperate defensive position. Sakura’s Defining Transformation
Despite Chiyo having only one working arm, Sakura trusts her completely to weave her through the lethal Iron Sand attacks, allowing Sakura to get close enough to unleash her Chakra Enhanced Strength . Naruto Shippuden Episode 23
Many viewers on Reddit note that while Sakura was technically a Chunin, her performance against an S-rank shinobi like Sasori cemented her as a top-tier kunoichi. The Heart of the Tragedy: Father and Mother Sasori uses the Iron Sand to clog the
Chiyo realizes the chilling truth: Sasori’s youthful appearance is a result of him turning his own body into a puppet, a desperate attempt to achieve "eternal art" and escape the pain of loss. Why It Matters The Heart of the Tragedy: Father and Mother
Flashbacks reveal a young Sasori creating these puppets to simulate a parental hug he would never truly receive.