Cursed Fetters of the Evil Path

The Cursed Fetters of the Evil Path is a powerful ninjutsu that was created for members of REIKON to use, invented by Gen'yō. It allows the user to trap their opponent in a barrier that is nigh-impossible to escape. To execute it, the user forms the necessary hand seals, then places their hand on the surface on which they intend to place the technique. When the target steps into the area, they are trapped within a series of black symbols that radiate outwards from the center of the technique, and are rendered immobile. The Cursed Fetters of the Evil Path typically only pins the target's feet in place, but highly skilled users like Gen'yō can use the technique to paralyze the opponent's entire body.

The technique, however, although powerful, has two drawbacks. Firstly, it will only effect when the target steps into its designated area, making the odds of the opponent getting caught extremely low. This can be worked around, however, by having a clone place the technique on the ground in close proximity to the target, and it will automatically take effect. Another drawback is the technique's high chakra cost, which limits its use to a few times a day.

Kusari was taught this technique in exchange for performing an espionage mission for REIKON. She ultimately betrayed the organization, resulting in her being branded as a target for assassination.