Seta Soujirou's most common technique. Means 'Reduced Earth', and comes from the way that the user seems to magically reduce the amount of space between himself and his opponent.
"Kenshin realizes it's the Shukuchi, a speed even faster than god like speed."
Uchinaaguchi (Okinawan) roughly translating to "silly". Alternatively spelled "sukutina", "スクチナ", or "すくちな". Never written using kanji (that I'm aware of).