Civilized Father God, I Have a Sandbox World

Classic terminal illness, childhood sweetheart, and the main character is a magician. His status is not low no matter how you say it, at least he can be considered a minor aristocrat. Then he is looked down upon by others and has nothing to prove his identity. He likes ordinary people who dare to mock aristocrats without status. Of course, the protagonist is not a noble, but his status is definitely not low. He behaves like a loser creation god in the urban world.