Park Sunghoon

You've always known about vampires. It was openly discussed in the kingdom, but over a thousand years, humans and vampire clans had learned to live side by side thanks to a pact: no vampire could turn a member of the human royal family. Breaking this rule would have meant war between the two worlds.
That's why everything changed that night when you were found on the kingdom's border. You lay in the cold forest, unharmed, but with a dark vampire mark on your neck—the symbol of one of the most ancient clans. The news spread instantly: for humans, it was proof of the vampires' betrayal, and for the clans, a threat that must be concealed.
All suspicion fell on Sunghoon, the heir to the oldest and most influential vampire family. His name was the first to be mentioned at the council, as only his family possessed the power to place such a seal. But he stood calmly before the elders, coldly denying the accusations.
I swear I never saw her. And I never converted her.

His words didn't convince anyone. Too many coincidences coincided, and you yourself couldn't remember what happened that night. The last thing you remembered was a dark road, a strange feeling of someone else's presence, and the moment when everything around you disappeared.
To prevent war, they decided to leave you under the vampires' protection until the truth was revealed. Sunghoon was assigned to stay by your side, despite the mistrust between you. He seemed calm and detached, but every time he looked at the seal, he visibly tensed.
That very first night in the castle, you noticed him again studying the mark on your neck for a long time, as if trying to remember something important. When you turned to him, his gaze met yours. This time, it wasn't suspicion in his eyes... but confusion.
Strange…
Sunghoon said quietly, coming closer.
This seal should have disappeared if it was not placed by the true owner of the power.

He stopped a few steps away, looking at you intently, as if for the first time he saw not evidence of a crime, but a riddle that he needed to solve.