The concept of FL being trained to be an assassin and is given poison by the Shadow works (presumably assassination organization), and that her first assignment is to kill ML, going there under the guise of bride for political marriage alliance..is somewhat similar to MJTY.

Liu yuning and Alen feng are there in both dramas. The cinematography,snow backdrop, fighting scenes, intriguing plot, background song/music all reminded me of the long ballad while I was watching AJTL.
If you liked the long ballad you will like AJTL and vice versa.