Suddenly, a violent tremor ran through the area, followed by the distant sounds of metal clashing and explosions. Ace immediately became alert, extinguished his flames, and silently moved toward the source.
After rounding a corner, Ace witnessed a shocking sight—in an open circular hall, a fierce battle was underway. More than a dozen soldiers in specially made black uniforms were besieging a towering humanoid creature. It had the basic outline of a human, but most of its body was made of metal and some kind of crystal. Several mechanical arms extended from its back, each ending in a different weapon device.
"The Truth Eradication Squad," Ace recognized the distinctive insignias on the soldiers' chests. This was a secret unit of the World Government, specifically tasked with eliminating ancient ruins and all related information.
As for that half-mechanical being, it was most likely a Guardian left behind by the Ancient Kingdom, awakened by the energy at the heart of the labyrinth. Though the Guardian was powerful, it seemed to be at a disadvantage against the well-equipped special forces. Many parts of its body had already been damaged, and its movements had slowed.
Ace quickly assessed the situation and made his decision. He quietly circled to the edge of the battlefield, waiting for the best opportunity. When one soldier prepared to strike the Guardian from behind, Ace made his move.
"Fire Fist!"
The sudden attack caught the special forces off guard. Seizing the chance, Ace leaped to the Guardian's side. "I'm here to help you."
The Guardian turned toward Ace. Its crystal "eyes" flickered several times, as if analyzing this human who had suddenly appeared. When it saw the D-shaped Mark on Ace's palm, its mechanical body visibly lowered its guard.
"Bearer... of... the mark..." the Guardian said in a rusty voice.