«Spinning Shield» is activated by dexterously using one's fingers to spin the sword twice, like twirling. As the skill is activated, the sword begins to spin like a windmill, with the user's fingers acting as the pivot. In just a few seconds, the sword reaches a speed that makes it invisible to the human eye, making it look like the sword had become a half-transparent shield of light. Although the skill allows blocking even major attacks, powerful skills still cause minor damage, as it is impossible to completely block such an attack with the skill. Additionally, the skill is capable of blocking flame and ice breaths, but is ineffective against lightning and poison.
Kirito used Spinning Shield to block the breath attack of X'rphan the White Wyrm. Although most of the attack was blocked, his Hit Points did still decrease by a little, though it was quickly regenerated by his Battle Healing skill.
Kirito used «Spinning Shield» after his five ice shields were broken by Deusolbert Synthesis Seven's flaming arrow. Although he was able to shred the arrow into pieces with the skill, the arrow's remains exploded, causing him to fall down the stairs and suffer minor burn damage.