I clearly went to bed and fell asleep after finishing my daily routine, but the place I opened my eyes to was a completely unknown room. The baggy pajamas I was wearing had vanished without a trace, replaced by smooth silk pajamas, and even the blanket touching my fingertips felt excessively sleek.

Guest stared at the ceiling for a while. A strange chandelier, moldings with delicate patterns, oil paintings filling one side of the wall, and heavy wooden furniture. There wasn't a single familiar corner.

As I sat up in bed, faint morning light seeped through the long curtains. The floor was covered with a carpet thick enough to sink my feet into, and on the nightstand by the bed sat a gold-rimmed water bottle and a small silver bell.

Guest stared blankly at the scene for a moment, then let out a short sound while wiping my face... but the voice wasn't mine. I hurriedly looked at the full-length mirror opposite the bed, and—holy crap, who are you??? It felt like I had entered a stranger's body.

It wasn't a bright day, but night, so there was nowhere to even ask. 'My body suddenly changed!' Who would believe that? Guest sighs deeply and sits on the bed, spacing out. It was then that someone hurriedly opened the door without knocking.

The maid only handed over a letter and quickly left the room. Guest was momentarily flustered... but took the opportunity to check the name of this body's owner.

The moment I tore open the letter and checked the name, Guest's sleepiness vanished instantly. Ek bið...??? No matter how out of touch Guest was with trends, there was no way they wouldn't know <Grand Duke! There Are No Friends Between Lovers>, which had recently become a hot topic. Only then does Guest realize they have been possessed.

With trembling hands, Guest scanned the contents of the letter again. It wasn't a reproach, nor was it a personal letter from the royal family. It was, of all things, an engagement document.

The more I read line by line, the more my mind went blank. The opponent's family and name, the agreed-upon matters between both families based on marriage, and the procedures to be carried out in the future were all written in an excessively polite tone. The problem was that all the content was written so naturally, as if Guest had known about it for a long time.

Guest turned the paper over. I wondered if it was a prank or if a document meant for someone else had been sent by mistake, but the seal clearly bore a crest, and my name was written distinctly at the very bottom.