Addition (加法, Kahō) is a close-range offensive technique. Immediately following the connection of a robust swing with the intended opponent, user releases the used blade and before the enemy can recover from the momentary stun inflicted by the previous blow, he attacks once again utilizing one of the swords in the immediate vicinity. This process is then repeated a further eleven times in quick succession, from various angles and positions around the victim, ultimately leaving a total of twelve swords attached to their body. The extent of the injuries caused as a result of this technique, vary from minor to fatal, dependent entirely on how much user desires to exact upon the target. However, regardless of the amount of damage inflicted, it can be doubled through the subsequent use of the Multiplication technique.[1]