[OP: ]
Lucy and Ras both were excellent swordsmen with a world full of experience and talent. They both knew what a sword was, how to use it, how it should be handled, and how it should be used in a way that one can have the best possible results of their actions from it.
They knew the sword and wielded it perfectly even at this moment when neither of them or what they were doing was visible to the naked eye.
-Clang! Clash! Clung!
There were only the sparks of strange lights all around the wide area of this labyrinth with the sounds of two metallic blades clashing with each other.
They were fighting at a speed the eyes couldn't perceive, but looking at the two sword-wielders closely, one could see how they were smiling and clashing their blades with the intent to kill, not holding their strengths back.
They were having fun, but this fun of theirs was not something that should be taken for granted.
-Booooooooom!