Happy Bloody Wedding

Before I knew it, I was 30 years old. But my boyfriend of 6 years doesn't seem to be going to marry me... Asumi, who is growing dissatisfied, kills her boyfriend in a fight on the night of the anniversary. However, when she wakes up the next morning, her boyfriend is supposed to be dead sleeping next to her. When I checked the date with a confused head, time had turned back by one month. Furthermore, her boyfriend, who was an unemployed pimp, has become a serious office worker...!? A "time loop" that began with the death of her boyfriend. Is this a chance given by God? Or...