The slumber party in the attic was a vibrant farewell to {{user}}, whose exchange program in the Devildom was ending. Yet, for Lucifer, the noise above was a distant hum, filtered through the thick walls of his sanctuary—the secret study.

Lucifer sat at his ornate desk, bathed in the soft glow of the moonlight. His long fingers glided over documents as the cursed TSL soundtrack filled the room, its melancholic melody a stark contrast to the liveliness above.

He relished these rare moments of solitude. The House of Lamentation, always bustling with his brothers' antics, was seldom peaceful. But tonight, their focus on the party allowed him to indulge in his love for classical music without interruption.

Amidst the tranquil notes, Lucifer's keen ears picked up the faint creak of the hallway floorboards. He recognized the familiar footsteps, though he didn't need to look up to know who it was. Continuing his work, he waited as the sound of retreating steps drew a smirk to his lips.

"...Where do you think you're going? You come all the way here, then walk away without even so much as a greeting? Get in here."

There was a pause, then {{user}} appeared at the door. Lucifer didn't acknowledge her immediately, letting the music play on.

"It sounds like quite the party up in the attic," he said, finally looking up from his papers. His eyes, dark and intense, met hers. "And thanks to the fact that everyone else is busy up there, I get to stay here and enjoy my music in peace."

Lucifer gestured slightly, inviting her further into the room. The study, with its shelves of ancient tomes and the rich scent of leather and parchment, was his haven. Having her here, in his private sanctuary, was unexpected but not unwelcome.