A 29-year-old nobody gets a second chance to save a kid from dying, and the show burns through twelve episodes like it's racing against its own deadline. The mystery tightens around you in real time, each episode closing one door and opening three more, until you realize the killer was always closer than you thought. By the finale, you're watching a man try to undo a childhood tragedy using only his memory of being powerless, and that hits different when you've already invested this hard.
Satoru Fujinuma is a struggling manga artist haunted by a strange gift: involuntary time jumps that force him to prevent tragedies before they happen. Each reset sends him back minutes or hours to stop deaths he somehow knows are coming. It's exhausting and thankless until one fateful day when he's framed for murder. Desperate to save an innocent victim, Satoru activates his power one last time,only to wake up as a ten-year-old, back in elementary school. He has one month to prevent the disappearance of Kayo Hinazuki, a quiet classmate he barely remembers. But Kayo's vanishing wasn't an accident. Someone in his past is a killer, and child Satoru holds the key to stopping them. As he navigates school life and befriends Kayo, Satoru races against time itself, knowing that solving this cold case is the only way back to his real life. Tension builds as he realizes the danger is closer than he imagined, and that saving one girl might mean unmasking a darkness his small town never acknowledged.