"Boom!"
The ancient sword swung, slashing against the stone gate.
The entire underground seemed to tremble, the surrounding rock walls shaking with a feeling of impending collapse.
Fortunately, its sturdiness exceeded all understanding, even under such a fierce impact, no actual collapse occurred.
"Hmm?"
Similarly, the stone gate was just as solid.
The elder wielding the sword felt his arm go numb from the shock.
Yet after one strike, the stone gate remained intact, showing no sign of being smashed open.
"Again!"
With a soft shout, he tightened his grip on the ancient sword and swung again.
"Rumble..."
A deafening crash erupted again, as though two massive mountains collided.
However, after this strike, the stone gate still showed no sign of being budged, tightly shut like a heavenly gate, beyond human power to open.
"Boom!"
"Boom!"
"Boom!"
The elder snorted coldly, wielding the sword in a continuous slash, the terrifying sword force filling the scene.
"Bang!"
