When the One-handed Sword 'Arthur' was less than five centimeters away from the top of Zero's head, Rhine heard a cold snort. A cold snort came from an unknown place, but it resounded clearly in Rhine's ears, as if an invisible person was standing behind him.

Rhine's body immediately released the highest level of alert signal, thus his sword that was aimed at Zero slashed horizontally across Zero's head. As he was lifting a few strands of hair up in the air, he slashed out at a ...