Amelia, the hidden head of the Ronan Dukedom, was betrayed by her beloved first king, Iris, and became immortal due to a curse called "God's Blessing." The curse not only bound Amelia's life, but also forced her to protect the country forever as long as Iris' bloodline continued.

700 years passed, and the long-standing royal bloodline was finally cut off by Queen Isolde, who rebelled against the king... However, Amelia's curse could not be lifted. Amelia was in despair, but suddenly she was summoned by a strange boy, Felix. Only the first king, Iris, could summon Amelia with magic. Amelia realized that this boy might be the only "child of the Blessing" who could break the curse.

In order to free her from this world, or to "kill" her, she decided to raise Felix to be strong, but...!?