- Name: Hiken - Usuba Kagerō
- Martial Arts Style: Kenjutsu (Iaido)
- User: Kagerō Kii
Hiken - Usuba Kagerō (Secret Sword Technique - Thin Blade Kagerō): An extremely fast sword Iaido technique that creates the illusion that multiple distorted swords are all attacking the enemy at the same time and strikes the opponent innumerable number of times. After the loss of Setsunamaru, Kagerō has been shown to be able to use this technique with a gardening hoe as a substitute.