What followed was a descent into a self-imposed purgatory. For days, Light sat in a featureless cell, watched by cameras and the unblinking stare of Ryuk. He waited for the precise moment, the mental "trigger" he had set for himself. "Get rid of it," Light whispered into the sterile air.
Light returned to the Task Force headquarters, his expression one of haunting resolve. He looked L directly in the eye—a move of pure psychological warfare. "L, I’ve been thinking," Light began, his tone uncharacteristically vulnerable. "If I am Kira, even unconsciously... I want you to confine me." Death Note Episode 16
"I relinquish ownership," Light said, his voice cold and certain. In that moment, the memories of Misa’s Death Note—the one Rem carried—vanished from his mind. But the shadows didn't take him yet. He still clutched his own notebook, the one tied to the shinigami Ryuk, which he had already buried deep beneath the damp earth of the forest. What followed was a descent into a self-imposed purgatory
As his eyes cleared and his posture softened, L watched from the monitors, baffled. The transformation was too perfect. The "Decision" had been made: to win the war, Light Yagami had to truly believe he had never started it. "Get rid of it," Light whispered into the sterile air