The heroine unexpectedly discovered that she could travel through time until she died, so she always wanted to change the fate of her whole family being slaughtered. Later, she discovered that what needed to be changed was the fate of the country. At first, she always thought that she was the only one in this cycle. Later, she found out that there was someone in prison who also participated in the cycle, that is, the male protagonist. Anyway, they defeated the second male lead together.
