Practically the same story line, just that Mia Jum Pen is more modern seeing as it came out in 2021. They maid is married off to someone in space of the household's daughter.
It's the same story basically with the servant pretending to be the fiancé of the rich guy, then the real fiancé later on wants the rich guy. Also both have a sister and the "crazy" nurse who takes care of the sis. Mia Jam Pen to me is better, but yeah the similarity is so big between the two dramas.
Arranged marriage, involving female lead not being biologically related to family but forced to fill in daughter and marry ( Maya See Mook girl is servant pretending to be daughter to pay off mothers debt from girls family and in Majurat See Nam Pueng girl is adopted daughter marrying guy to pay off debt of gratitude towards people who raised her) also in both male lead has girl (s) that are obsessed with him