Kirito used one of the Dual Blades Sword Skills to demonstrate his secret skill to Lisbeth after she asked why he needed another sword. Kirito requested for Lisbeth to not tell anyone about the skill. He goes on to use this skill in several episodes. Kirito used the skill during a duel against Heathcliff, though Kirito lost the duel due to Heathcliff using the system assistance past its normal limits to help him win the duel. He then again uses his Dual Blades while battling against Scavenger Toads in the Hidden Dungeon. Both of these blades have impeccable detailing and are made from stainless steel. They are full tang and come with a nylon back sheath so you can carry them simultaneously. The back sheath is adjustable so you can fit it to size. Get this set now! Trust me you won't regret it.