Shunten Satsu

Shunten Satsu is a quick draw technique that is referred to as battōjutsu. The unique thing about it is that it is combined with an abnormal speed boost from Shukuchi (Literal translation- Reduced earth). Shukuchi itself is already fast, not even visible to the human eye. Combine that with the speed boost acquired from Battojutsu and you have Shunten Satsu. As the name implies, the target is killed before the actual pain can take hold.

This move is used by Sēta Sojiro in the anime Rurouni Kenshin.