The main characters are also in a similar industry (beauty products). And it is also a hate-to-love relationship where the male lead helps the female lead grow her business with his connections.
The main girl is also a foundling (adoptee) and has to take back her fortune from a swindler.
The main guy also has a past history similar to that of Han Gyul's knee.
The adults in the drama also have their own story arcs and the villains are also redeemed at the end of the drama.