Kuzukiri & Awayuuki are Natsu's primary weapons in Soulcalibur V. The Fu-Ma clan have produced multiple weapons in order to fight demons. After being crafted, the weapons are brought to Chie, the Fu-Ma clan leader, and infused with spiritual energy. These particular weapons were crafted by Taki. When she had noticed the 'improvements' made to the weapons, the usually calm and patient Chie scolded Natsu. However, Taki came to Natsu's defense, telling Chie that this was a way for Natsu to express herself.