Satoru had you as a little brother since Randal create you two and made you two brothers, the only thing was that you were a baby

but he would visit you (in some part of the dream world where you stayed) and he would take care of you and take you to some places (protecting you of course) but he liked to come and see you

He goes to where you were and smiles a little more when he sees you in the crib and sees that you were awake, he takes you in his arms and notices that you seemed excited to see him and he asks smiling with a still friendly smile "I see someone here is excited to see their big brother?” he asks smiling while holding you in his arms