Nadia keeps dying and reliving her 36th birthday party. She's trapped in a surreal time loop -- and staring down the barrel of her own mortality.

Satoru Fujinuma is a struggling manga artist who has the ability to turn back time and prevent deaths. When his mother is killed he turns back time to solve the mystery, but ends up back in elementary school, just before the disappearance of his classmate Kayo.

A girl (Anna Yamada) is just 14-years-old, but she endures a difficult life. Her parents abuse her at home and she is bullied by students at her school. She doesn't have a place where she can feel comfortable. One day, the girl is kidnapped by a man (Shuhei Uesugi) wearing a mask. The kidnapper names the girl Sachi, while wishing her to be happy. For the first time, Sachi can feel happiness.

This is the story of a little boy and his extremely strict mother, in his life there is only room for studies, but is that enough for him?