what is the name of a korean soap apera about a very cute little girl ?

I became obsessed with a Korean Soap opera that i saw on the Korean
channel with subtitle on english but i don't know the name of it . It
was about a little girl that live with her single young mother on a
farmer , and the father's child didn't know he has a daughter and he
live on the city , that all i remember .Please if you know the name
that this let me know . Thanks!!