try Fringe Capybara's astrologist. the daughter was swapped with a son. but it's a happy happy story just search under translator groups
Try I Have Decided to Go Look for my Father as well. It's also by Fringe Capybara. Not a swap though, more like switching from one family to another. MC's bio dad doesn't know she exists and her Mother and Step father's family neglects her. She finds out that if she stays with them she's gonna die so she decide to find her bio dad. It's HE with the bio dad and bio dad's family and also HE with her own relationship.
Okay, not a rec, but could you please tell me where your pfp is from?? If it's an anime then what is it's name?
Hmm it's a manhwa named 'I want to be you, just for a day' Thankss for recommendations, I'll take a look of it first!! I remember reading this before but didn't continue, based on my dq previous comment I'm consider not in the mood and later on forget