This is the article on the bukijutsu technique used by Tobirama Senju. If you are looking for the article on the ninjutsu from which it is derived, head to Flying Thunder God Technique. For other uses, see Hiraishin.
A technique combining the use of a bladed weapon and space–time ninjutsu. The user teleports to a marked target, with weapon in hand, to instantaneously deliver a swift, devastating slash to his opponent. The sheer speed of this technique, is such that even an individual who possesses the Sharingan is unable to react in time.
In the anime, Tobirama used a marked kunai hidden with other thrown kunai, allowing him to attack a target that dodged his projectile attack.