Practice Daughter

Both FLs are thieves who swap identities or bodies with a wealthy girl and become involved with the ML.

Both FLs are bandits/thieves who swap identities with a noble woman and enter the palace where they and the prince fall in love.

Both FL swap soul

in Practice Daughter, 2 bodies were involved and they swapped

while in ETL, they share a body and swap personality

Both FLs are bandits/thieves who take on false identity and enter the house of the wealthy or royal ML. The two soon fall in love.

Both FL were thieves and tried to steal from the ML.

In Practice Daughter, she wants something from him that's why she stayed

In IDWTBP, the FL was forced to be the wife and accompany him

Both FLs are bandits/thieves who swap identities with another girl and become involved with the ML, falling in love along the way.