Looking for bastard child/adopted child drama please!

Hi everyone, i just finished a certain drama that had a character called Hye Na who was a bastard child of one of the main familys' surgeon husband (dont want to spoil anyone who is potentially watching that drama so i havent given name). And i found myself enjoying that part the most. So im looking for other dramas where there is a preferably a bastard child either from before wedding current wife or by cheating but the father has no idea about the child. Then one day the child finds their father and drama ensues. It can be a ridicioulous plotline i dont mind XD but obviously high quality stories are most preferred. Also adopted child into family that has abuse drama is welcome too although ik its quite different. i think that would be interesting. Thank yuo for reading

The Rise of Ning (FL is an illegitimate child as a result of her mother falling in love with another man but the father believes she is his daughter until the revelation partway through the drama. Also ML is the illegitimate child of the father by a servant and mistreated as a result)

Thank you everyone I will check your reccomendations out and search tags if i need :D I really appreciate the reccomendations! idk how to ping you so i hope you see my thanks

Father Is Strange has a well-known actor show up, insisting that the father of a happy household is the dad he never met. (Contrary to the title, there is nothing strange about the father - he and his wife work hard in their sandwich store, and are close to their four grown children.)