A refinement of Mayuri Kurotsuchi's Shikai, this technique weaponizes the infant figure fixed to his blade, forcing out a scream whose sound locks the body of any listener not tied to his bloodline. Its name renders roughly as Leg-Cutting Jizō, Terror Magnitude Four.
The move is an advanced application of Ashisogi Jizō, the Shikai carried by Mayuri Kurotsuchi. Where the sword's standard poison merely halts a target's movements, this version reaches far deeper, and its effect radiates outward as sound rather than a physical strike.
Mayuri triggers the effect by pressing a finger into one of the eyes of the baby-shaped avatar that adorns his released Zanpakutō. The figure weeps a dark fluid and its mouth gapes open in a wail. Anyone not related to Mayuri by blood, a safeguard he shares with Nemu Kurotsuchi, who endures four seconds of that cry falls completely still. In contrast to the blade's baseline ability of severing only the nerve signals for motion, this heightened form shuts down every biological function of the victim.

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Ashisogi Jizo, Kyodo Yon, translated as Leg-Cutting Jizo, Terror Magnitude Four, is an advanced application of Mayuri Kurotsuchi's Shikai, Ashisogi Jizo. It uses a scream to paralyze anyone not related to Mayuri by blood.
Mayuri Kurotsuchi triggers Kyodo Yon by pressing a finger into one of the eyes of the baby-shaped figure attached to his released Zanpakuto, causing it to weep dark fluid and let out a wail.
Anyone who hears four seconds of the technique's cry and is not related to Mayuri Kurotsuchi by blood is left completely unable to move, as the sound shuts down every biological function rather than just severing nerve signals for motion.
Only those related to Mayuri Kurotsuchi by blood, a safeguard he shares with his creation Nemu Kurotsuchi, are immune to the technique's paralyzing cry.
While the base Shikai poison of Ashisogi Jizo only halts a target's movement by severing nerve signals, Kyodo Yon reaches deeper and shuts down every biological function of anyone caught in its sound.
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