What Happens In The Detective Is Already Dead Manga, Vol. 1?

I'm Caleb Jennings. When I announce my early retirement, everyone in the city cheers. Only Nathan Sloan, my junior from the police academy, who claims to be able to see things from the criminal's perspective, panics at the news. During the party organized in his honor, he openly states his intention to find me. "I owe my success to the guidance Caleb Jennings has provided me all along. I hope everyone can help me find him and bring him back into the police force." Scoffing, I choose to ignore that. … In my previous life, I was the celebrated captain of a criminal investigation team. Yet, whenever I uncovered a clue, Nathan, a rookie in the city police department, would announce it first, beating me to it. After multiple incidents like this, everyone started saying that I was past my prime. To prove myself, I worked myself to the bone for three months before finally locating the hideout of a human trafficking ring. However, when I arrived on the scene with my team, Nathan had already swept through the place. He was launched into stardom, becoming the rising star detective that everyone adored. As for me, the public mercilessly tore me apart, labeling me as incompetent and shaming me. Due to the pressure from work and the negative public opinion directed at me, my mind was distracted. I ended up getting killed while hunting down the remnants of the trafficking ring. When I open my eyes again, I find that I'd gone back in time—to the day we launch a raid on the human traffickers' hideout.

As the news broadcast reported a random serial killing near my residential complex, I knew—I had been reborn once again. In my first life, my husband insisted on going out in the middle of a snowstorm to buy weapons for self-defense. I locked every door and window, waiting at home, anxiety clawing at my chest. I never imagined the killer could pick locks. Before I could even react, a blade plunged into me, and I died on the couch. In my second life, I didn't hesitate. I hid in a concealed storage room, holding my breath. But the door was still pulled open. A man wearing a rabbit mask stared straight at me. "Found you," he said. In my third life, I ran to the police station. I rushed inside and told the officer on duty that the killings weren't random—that the murderer was coming for me. They looked at me like I'd lost my mind. Then my husband arrived in a hurry and took me away. But the moment we reached our front door, a heavy hammer smashed into the back of my head. Through the blinding pain, I forced my eyes open, but I never saw who killed me. Now, staring at the grave expression on the news anchor's face, agony surged through every inch of my body. Rebirth isn't a reset. The damage accumulates—and sooner or later, it will torture me to death. Without hesitation, I walked into the kitchen and set a pot of oil to heat. And I waited… for the moment the lock began to turn.

After my younger brother died, my parents and grandfather all killed themselves. Each of them died in a different way, but they shared one thing in common: Before their deaths, every one of them had read my brother's suicide note. And in that note, there was only a single sentence. Reporters fought for a chance to interview me. The police interrogated me overnight. Countless people wanted to know what that sentence said. But I never told anyone. Until the tenth anniversary of my brother's death, when I saw a figure standing in front of his grave. At that moment, I felt an overwhelming sense of excitement. Because I knew my turn had finally come.

A serial killer targeted me. My sister-in-law was assaulted and murdered while trying to save me. Not only did I refuse to call the police, I pushed my father-in-law and mother-in-law down a flight of stairs when they came to help. I even helped the killer destroy the evidence. When my husband learned that his entire family got killed, he broke down in tears. He grabbed me by the collar and demanded, "Why? Why would you do this?" I deliberately waved photographs of his family's gruesome deaths in front of him and burst into laughter. "Why?" I sneered. "Because they deserved it." My parents begged me to cooperate so I wouldn't be sentenced to death. Instead, I publicly severed all ties with them. Meanwhile, the murderer who escaped justice struck again, claiming another victim. As public outrage reached its peak, I was selected for the Memory Extraction Program. Before the sentence was carried out, my husband asked me one final time, "The Memory Extraction System is still a prototype. You could die during the procedure. "Tell us the truth now, and there's still a chance to make things right." I slowly raised my head to look at him. "You're not getting a single word out of me." The crowd instantly erupted. People shouted that a worthless life like mine deserved to die. But when my memories were finally extracted, they were the ones crying and begging someone to save me.

When my eyes were gouged out, my mother was shopping with my cousin. When I was forced to drink a bottle of acid and died in agony, she snapped impatiently, “Kara, can’t you be as well-behaved as Wendy? If you’re just going to run away, then don’t bother calling me!” However, when she saw the crime scene, she rushed outside and threw up. As a criminal psychologist specially hired by the River City police, how could she feel sick at the sight of her own daughter’s body?

On Mom's death anniversary, drug dealers break into the cemetery and take me away. To get revenge on my brother, Zack Smith—a forensic pathologist—they torture me until there isn't even a single uninjured spot left on my body. I hold on for almost three days, barely surviving, until I finally get a chance to call him for help. However, Zack replied, "Why didn't they kill you for good? A jinx like you who killed your own mother shouldn't be allowed to live!" When the drug dealers notice my action, they shatter all of my bones. The next day, a janitor discovers several large bags of human remains in the trash can. Zack painstakingly reassembles my body back together with his own hands—yet he fails to recognize that it's me, his younger sister he always claims to hate. When the drug dealers are finally arrested, he descends into madness.