|This article is under construction by its author JakCooperThePlumber.|
|User(s)||Frau Kojiro, Kaoruko Usui|
Hakki is a powerful Taijutsu technique created with the combined efforts of two comrades in the Black Mountain Gang, Kaoruko Usui and Frau Kojiro. Although extremely useful in many situations, they originally created it in order to hopefully be able to take down their previous master, Shikyo Fushiawase.
This is a technique which temporarily allows the user to vastly increase all of their physical attributes--speed, physical strength, durability, and attack power--by at last five times.