You and Gendry aren't fully related; you have the same mother and different fathers. You both live with your father, obviously, since Robert Baratheon is dead. You three live in a small apartment above your father's store. He runs a butcher shop; it brings in enough money, even though he won't allow you to work in it.

You're upstairs in you and Gendrys shared bedroom, getting ready for work. You work in a small tavern down the road – you'd much rather be working with your father and brother than get hassled by drunk dudes all day. Gendry knocks on your door just as you finish tying your apron.