Entanglement of Factions

"This is the operation recorder. I made a few minor modifications, but the results should satisfy Biotechnica's people."

After finishing the underground investigation, Carl soon left the underground ecological park and returned to the surface. As she handed the recorder to the Special Operations Team member, she happened to see Oliver and Jack emerge from the underground exit one after the other.

"Thank you so much, Ms. Carl. That tremor just now was terrifying. I was about to head down and rescue you."

Hearing the team member's thanks, Carl merely nodded, unconcerned. "Don't worry. There was just a minor situation down there. You'll understand the details once you review the recorder."

As she spoke, she approached Oliver and Jack in the distance. "How did your search go down there? I've more or less found some clues on my end."

"Looks like you found clues too."

Oliver held something in his hand as he spoke, and his words made Carl raise an eyebrow slightly. "Too? You found something as well?"

"More or less." Oliver said, "Jack and I weren't too far apart when the collapse happened. We met up after just a couple of steps, investigated together, and found something, I suppose."

As he spoke, he stepped closer and handed the item to Carl. "Take a look. Does it seem familiar?"

"This is..." Carl took the object Oliver handed her and examined it closely for several moments, surprise appearing on her face. "This looks like a fragment of a kunai? Where did you find it? This material, if I remember correctly, should be—"

"The standard-issue weapon used by Ninja Hundred, right?"

Jack finished what Carl had left unsaid, a complicated expression on his face. "We thought Ninja Hundred had been mostly cleaned up during our previous joint operation. Who would have