Reborn Detective: My System Unmasks Every Killer

Death was just the beginning. Murdered by a shadowy organization, I wake up ten years in the past—the day I joined the police force. A brutal massacre rocks the city, and while my colleagues fumble in the dark, I activate a mysterious sign-in system at the crime scene. They call me a rookie. Criminals dismiss me as a fool. But with every case I solve, my power grows stronger. Serial killers? Locked-room mysteries? One sign-in reveals all their secrets. Armed with knowledge from my previous life and an unstoppable system, I'll dismantle the organization that killed me, repay every betrayal, and…