You can say It's a assassin's to lover drama.
Wang Chu Ran is beautiful ❤️ Chinese actress and in this drama the Bond and chemistry between main leads are really amazing.

She forget her past memory due to an assassin attempt and male lead who is a Big shot in the country pretend to be a commoner get treated her. She comes to know that he used up all his Fortune to save her, she wakes up and call him husband.
The romance between them started as cold lord and beautiful wife wanted to get his attention.