Miyu and Shuya are high school student. They have got date for 2 old age. Miyu and Shuya have got a promise that no affair what, they will watch a film together on the first day of each new calendar month. When Miyu and Shuya are on their way to the film theatre, Shuya all of a sudden cancel their day of the month. Shuya look like he is hide something and he act nervous. subsequently, Miyu travel to the topographic point where she is suppose to run into Shuya, but she witness Shuya get into a car accident. She panic, but when she wake up she find herself on the morn of the accident. Miyu keep wake up on the day when Shuya got into an accident.