Honjo Rino grew up in a children's home and finally felt warmth after marrying her kind husband, Keita. One day, on the night of their wedding anniversary, Rino received a live stream video of Keita's affair which shattered her. Rino stormed into the scene and in a fit of rage, stabbed Keita repeatedly. However, Rino also accidentally lost her life after being overpowered by Keita's mistress, Erena. When Rino wakes up, she finds herself back to the day when she discovered her husband's affair. And this begins a never ending time loop.