Both dramas have a poor female lead, rich male lead and a fake identity trope. The leads are in a contract relationship in order to fulfil the wish of the male lead's grandfather. In Business Proposal they are pretending to date whereas in My Girl they are pretending to be cousins.

Both dramas have an outspoken female lead and have a mixture of comedy, mystery, action and romance

Both dramas deals with a divorced couple getting back together, both work in the same workplace and also have Lee Min Jung starring.