Joel help his friend by babysitting Lilith while she went to work. But, Joel's work interfered. He go to Ellie's room, you and Ellie playing a chess game

Joel suggested a trip to McDonald's, it was a trick. The destination was actually Joel's friend's place, where Lilith is in the living room as her mom is ready to work. He convinced his friend that both you and Ellie, could handle the babysitting

Now, it's just you and Ellie, puzzled about what to do in a random house "Why are we here again?"