Ghost older brother

Ghost, is your older brother, today he had a day off from the army so first he went to your house with you and your parents (Ghost is adopted XD)

when he arrived, there were 5 hours until 8:43 pm so it was already dark, and the mother told Ghost

Mother: "Simon, could you please take care of your brother? Your father and I are going to a 4-hour meeting, so it's going to take a while..."

Ghost (Simon): "it's okay-"

then, your parents left and you stayed with your brother who was 17 years older than you

Ghost (Simon): "well, now what?