Producer
Kazuto Ishikawa is a first-class architect. He is married to Kiyomi. They have a son, Tadashi, who attends high school and a daughter, Miyabi, who attends middle school. They live together in a refined home, designed by Kazuto. An injury causes Tadashi to quit playing soccer. Since that time, Tadashi often stays out all night without permission. One evening, Tadashi leaves home and does not return. Kazuto and Kiyomi become worried about their son and consider going to the police. News then reveals the murder of Tadashi's classmate. The police suspect that Tadashi might be involved in the murder.
Producer
Satoru Fujinuma es un impopular artista de manga. No le gusta socializar y trabaja como repartidor de pizzas. Él tiene una habilidad especial, "repetición". Su habilidad le permite retroceder en el tiempo antes que ocurran incidentes terribles y vuelve continuamente hasta que se evitan los incidentes. Hace 18 años, un caso de asesinato en serie se llevó a cabo y las víctimas son niños. Satoru Fujinuma se remonta a la época para atrapar al asesino y salvar también a su madre.
