Secret Boutique

Both revolved on the revenge of the powerful female leads fighting their claim for their family and position in the world of the rich.

story-wise both drama are really similar to each other with a smart female leads fighting each other with their wits in a high class society settings, also with every member of the family having secrets and also reason for revenge..
if you enjoy one of these drama you will definitely need to check the other one..

Both women suffered abuse/witnessed a crime that made them vow to themselves to improve their standing in order to never be in the same position again. In doing so they meet male leads with which they grew up, that know (nearly) all their dark secrets and are willing to help them and stand next to them to help the FL achieve her goal even when they are morally not always supportive of their actions. Both female leads lack empathy and show some sort of sociopathic tendencies.

Both dramas deal about strong independent, cold women, that have one goal and kind of play a double edged sword. At the one hand they can ruin their company, at the other hand they can bring it to success. Both women are accompanied by males that try to help them with achieving their goals.

Secret Boutique's story is also about revenge and corruption. Kim Jae Young has a main lead role in both dramas, a commonality.

Both dramas revolve around a woman that experienced a brutal crime as a child/teen and lost her family because of it. Both girls are receiving help form a male that knows their secret past. Both girls take on a false identity to take their revenge against the ones that hurt them.

totally different story/genre/feel, but I recommend because both have same rare situation in romance part.
(spoiler):
If you liked story line where FL loves man even knowing he is gay, and that man also loves her, is friend and support for her, cares for her, but of course different way, he romantically loved other man, but now tries to be man/husband for her; also there is another man who loves FL... then you should try second drama too.

SB is more drama, intense plot, revenge and serious vibe, Hyena in more light and more romance focused

they are both have a dark and cold feel around them and they focus on a more "mature" female cast, also both have alot of female cast

Both female leads are out for revenge and both leads plan that revenge for many years till they act. Both are all in and do not plan on holding back in regards to how far they are willing to go. Both female leads are from a poo background and work their way up in order to beat their opponents.

The relation between the two female leads is a bit similar. Both dramas are revenge stories with the female lead as the revenge plotter.

- Strong and smart main role with hidden identity
- Revenge For things happened in their childhood
- The groups can't live without them