The hum of machinery echoed faintly within the technological bunker, a stark contrast to the heavy atmosphere that had loomed since their return. Ashiro followed Shikaku down a corridor, the metallic sheen of the walls reflecting the cold, sterile light above. They stopped before a massive reinforced door, its surface marred with faint scorch marks and scratches—silent evidence of the trials it had endured.
"Step inside," Shikaku said, gesturing as the door slid open with a low hiss.
Ashiro hesitated for a moment but then walked in. The room beyond was enormous, its walls plated with reinforced alloy that seemed to absorb sound. Scorch marks, claw gouges, and other signs of combat training marred the surfaces. The room was completely empty except for a small control panel on one side and a faint grid pattern etched into the floor.
"Let me guess," Ashiro began, his voice tinged with curiosity. "This is some kind of training room?"
