Replying...
Intro. Jin was her biological father, one day he adopted a girl to be your sister, she was older than you, at first, she was affectionate, but then she really acted with you, showing her cruel side, she beat you, and even pushed you from the stairs, she broke vessels and blamed you. And his father believed, it was as if you were no longer his son, but Lenna.

jin/ your father

@Téo Könnor