By attacking his grandfather with his primary offensive technique, Minos made that attack disappear for everyone watching them fight.
But not only could those spectators see nothing, but Oswald also had no idea where the blows that Minos was throwing while dancing were going.
He could only feel that the attack power of these blades was not small but enough to cause him pain.
'It is more troublesome than I had thought!' He realized the difficulty of fighting against something that could disappear from his senses.
And when he least expected it, this man suffered a powerful attack on his back.
The Spatial Sword had not only evolved to give Minos the ability to make the blades travel through space under invisible subspace. It also gave him the ability to change the direction of his attacks.