Sophia Primrose had been living under the protection of the Knight Commander who rescued her, ever since her parents were murdered when she was six years old.

The noble Randolph family was a picture-perfect happy family,

with kind parents and beautiful siblings.

As she harbored feelings for her younger brother, Owen, she discovered her own destiny from the memories of a past life that resurfaced when she was twelve.

Owen falls in love with a summoned Saintess during a journey of purification.

What awaits her after being consumed by jealousy for the Saintess and falling into darkness is a miserable, lonely death—

To change her destiny, so that the person she truly cherishes can always keep smiling.

Sophia, by herself, resolved to fight against it.