In the World of Detective Conan with a Choice System

Transmigrating into a nightmare is one thing; waking up as the prime suspect in a "locked-room" murder is another. When Akikawa Kosuke opens his eyes, he isn't in a hospital or a peaceful new world. He is trapped inside a sealed, crashed boxcar, his body leaden and his mind reeling from carbon monoxide poisoning. Slumped over him is a woman, gruesomely stabbed to death—and his own hand is still clutching the hilt of the murder weapon. With police sirens wailing in the distance and a mysterious "Option System" flickering before his eyes, Kosuke realizes he has seconds to act. He has no memory of the original owner’s life or whether he is truly a killer, but he knows one thing: if the police find him like this, his new life ends before it begins. A desperate race against logic and evidence begins. In a chilling display of resolve, Kosuke uses his medical knowledge to systematically destroy the evidence against him. To sever his connection to the weapon and the crime, he must go to extreme lengths—even if it means deliberately shattering his own bones to create a physical impossibility. But as the doors are forced open, Kosuke discovers he isn't just facing the local police. He has transmigrated into a world where the "Death God Elementary School Student" exists. Under the piercing gaze of the world's most famous detectives, can Kosuke maintain his innocence, or will his own cover-up become his undoing? What to expect: Mc who will break his own body to manipulate a crime scene. High-stakes decisions that grant skills, traits, and survival. Prove your innocence when you are caught red-handed in a locked room. This is only a translation. Here is the original source: 人在柯南，有脑内选项系统