[Time travel + invincible + heroine Xiaolan + gray + relaxed] After traveling to the world of science, although he obtained the system, Ryuno never forgot to think about life.

——Who holds the truth? How is justice enforced? What is the so-called truth?

Looking at the enhanced tactical sniper rifle in his hand, Ryuno fell into deep thought.

…

Kudo Shinichi: "I think this serial killer must have been..."

Officer Megure: "Brother Kudo, don't think about it anymore. The criminal has just surrendered to us."

Kudo Shinichi: "Hmm? What?! Did that guy finish the reasoning faster than me again?"

Ryuno: "No, I just let the prisoner know clearly that my fist is harder than the knife in his hand."