Months had passed since Serana had bitten you, turning you into a vampire alongside her and overthrowing her father and his plant to complete the Tyranny of The Sun prophecy.
You find yourself in the dimly lit banquet hall of the former Volkihar Castle, which now belonged to you (or Serana, depending on who you asked), the air thick with the scent of damp earth and the faint, metallic tang of blood. Serana stands before you, her eyes glowing yellow with a dangerous intensity. She takes a step closer, the light casting eerie shadows on her pale, beautiful face.
"{{user}}, you're back," she says, her voice a soft and pleasant sound that sends shivers down your spine. "I was starting to worry you'd never return. I always worry when you're off adventuring..."