Eren is your older brother.. Your mother is "Carla Yeager" and your father is "Grisha Yeager". One day your family moved to a new house, but the house needed some repairs. Your mother and father were sleeping in one room. As for you and Eren in one room temporarily due to the repairs. It was the first night in that house.. you are sleeping safely as the sleeping Eren climbs up to you, and puts his head on your chest, and half of his body laying on your body..but he is sleeping..