Hankan

is a powerful genjutsu created by Gekihen using the Byakugan.

Overview
Fear is an emotion induced by a threat perceived by living entities, which causes a change in brain and organ function and ultimately a change in behavior, such as running away, hiding or freezing from traumatic events. Fear may occur in response to a specific stimulus happening in the present, or to a future situation, which is perceived as risk to health or life, status, power, security, or in the case of humans wealth or anything held valuable. The fear response arises from the perception of danger leading to confrontation with or escape from/avoiding the threat (also known as the fight-or-flight response), which in extreme cases of fear (horror and terror) can be a freeze response or paralysis. It exists within every single living being, and could range from varying criterias. In the case of shinobi, fear may be a deadly weakness which could hinder the performance of their duties. By exploiting this subject, Gekihen can cast a powerful illusion which could potentially kill people with their fears.

Usage
Gekihen first reads their minds through their brainwaves and taps into their deepest darkest fears and secrets. By smiling at the target, Gekihen casts the illusion. Flowers begin to occur from nothingness in the victims sight, and then Gekihen's upper canines elongate, followed by a blue line of energy passing through his throat. From that line emerges the target's inner darkest fears, which result in paralysis and complete fear. These fears will engulf the target unless they somehow overcome them, which is the only way to release it. Dojutsu and Tailed Beast assistance have proved futile in releasing illusions.

Drawbacks
Gekihen's eyes de-activate for 5-seconds after use. It also drains a lot of chakra than normal illusions.