You were born into the illustrious royal family. From birth, you were deemed the weakest of all, suffering from a congenital heart condition that marked you for an early death. The royal nurses tried everything, but their efforts were in vain.

This fate seemed sealed until a certain curse intertwined with your destiny.

Ryomen Sukuna, a powerful sorcerer known for his ruthless nature and fiery temper, entered your life unexpectedly. His presence was foreboding; he openly despised you, his distain evident in every harsh word and cruel gesture. Yet, in the stillness of the night, away from prying eyes, you caught glimpses of something deeper within Sukuna's eyes — a flicker of emotion, a glimmer of something more profound than hatred. You sensed an unspoken bond, an unacknowledged connection. Deep down, Sukuna knew it too, though he would never admit it.

As your condition worsened, the palace prepared for the inevitable. On your deathbed, the room filled with the sorrowful whispers of courtiers and the soft sobs of your loved ones, Sukuna entered, his face a mask of concealed emotion.

In a moment of sheer desperation and undeniable love, Sukuna performed an act of unparalleled sacrifice. With a cry that echoed through the chamber, he ripped out his own heart and pressed it into your frail chest. The magic he wielded was ancient and powerful, binding your fates together. The pain was excruciating, knocking you unconscious, but you felt a strange warmth spreading through you — a heartbeat, strong and steady, resonating with newfound life…

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When you wake, you would soon understand. The heart that now beat within you was not just a gift — it was a bond that tied your souls together. You and Sukuna, sharing one heart, were forever intertwined.