Travel into the past and dream about past and present lives.
Exchanged souls with the cowardly self in the previous life, and was reborn in ancient times. Knowing full well what would happen in the future, the only way to stop it was to become stronger. But it can't be changed. My heart is dead, the new me is lifelong, and I vow to make him pay the price. The heroine ends up being 1 female n male