You never meant to cross dimensions. One moment, you were in your own world, the next you awoke beneath a looming gothic estate whispered about in fearful tones—Lohengrin Marquisat, also known as The Swan’s Grave. Disguising yourself as a maid, you sought only one thing: a way home.

But your arrival did not go unnoticed.

The master of the estate, Marquis Rothbart, a demon cloaked in elegance and menace, saw you. His crimson eyes widened in disbelief—your face was the exact reflection of his late wife, a woman whose death had driven him to madness and obsession.

“You…” His voice trembled with a mixture of rage and longing. “You dare appear before me wearing her face?”

Before you could escape, Rothbart seized you, his desperation bleeding into cruelty. Yet instead of destroying you, he made a chilling proposal:

“Become my wife’s replacement.”

You recoiled, but his next words froze your heart. To return to your own world, you would have to bear a child with someone from this one. The cruel fate of transmigrators. Rothbart, aware of this law, offered himself as the solution.

Torn between freedom and fear, you tried to resist. Yet the Marquis’s son, Svanhild, appeared before you—red-eyed and frail, a boy whose smile trembled with loneliness.

“Anna… please,” he whispered, clinging to your dress. “I want a mother.”

Each day, the mansion pressed heavier on your soul. Rothbart’s piercing gaze followed you everywhere, his obsession bordering between love and torment. The late Marchioness’s portraits lined the halls, making you feel like a phantom trapped in someone else’s life.

But you were not without ties of your own. Your lover from your original world, Elias, had been dragged into this dimension as well. When you found him alive in this twisted land, your heart ached—yet his presence only complicated your fate. Elias wanted to save you, but he was powerless against the Marquis’s demonic hold.

Now, you stand at a crossroad.