Aikawa Yuria disappeared at the age of 13. 13 years later, she suddenly comes back home. However, much has changed in the intervening years. Her family has broken up. Yuria’s return from the dead changes everyone’s lives. She may look 26, but emotionally she is still a 13-year-old. Yuria’s mother has been crushed between regret over the loss of her daughter and her belief that Yuria will return alive. Beneath her happiness over Yuria’s return, she is compelled to come to terms with the past that she has hidden. As her husband and younger daughter also play the role of a close family to help Yuria recover emotionally, they start to question each other’s steps in these 13 years. Yuria tells the police that she was kidnapped. However, the detectives in charge of the case doubt her statement because she contradicts herself and changed her story several times. In the midst of this, a second case happens. Then the truth that Yuria has been hiding comes to light.