Nen research file · Personal hatsu

Hypnotic Needle (unnamed)

manipulatorUser: Illumi ZoldyckactiveCanonical
Personal hatsu
Mechanics diagram
Activation
  • Embed a programmed needle in the target's brain.
Conditions
  • The effect persists while the needle remains embedded.
Effects
  • Triggers automatic fear, paralysis, or avoidance when the target would violate its command.
  • Can suppress feelings or memories until the needle is removed.
Assessment
Description

A needle planted in the target's brain imposes subtle standing commands that feel like the victim's own instincts, fears, or memories.

Observed output
Effects
  • Triggers automatic fear, paralysis, or avoidance when the target would violate its command.
  • Can suppress feelings or memories until the needle is removed.
Counter-analysis
Weaknesses & counters
Weaknesses
  • Resistance causes increasingly localized headaches that can expose the needle's position.
  • Removing the needle breaks the conditioning.
Sourcing
Evidence
  • pre-arcCanonicalEstablished pre-arc through the needle planted in Killua; Hunterpedia's descriptive name is unofficial.
File data
Parameters
Activation
Embed a programmed needle in the target's brain.
First seen
pre-arc
Mechanics known
pre-arc
Bindings
Conditions
  • The effect persists while the needle remains embedded.