The Red Sleeve manhwa, The Red Sleeve Cuff옷소매 붉은 끝동

There was a king who was said to be scarier than a goblin.

And there was a court lady who wanted to live a long life.

Strangely, the two found each other to be unpleasant.

And so they drew closer. Yet, they didn’t get closer.

While they shared one difficult and uncertain step at a time, both kept to their places like a habit.

Her life was shaken by the king’s sudden feelings for her.

“Do you really cherish me? If you do, please don’t even greet me in the next life.”

This is a sad love story between a king who had to love his country, and a court lady who loved her life, both of whom could never be equals.
https://teenmanhua.com/manga/the-red-sleeve