"Butler Simulator", as the name suggests, is a game that allows players to simulate becoming the butler of a large family.
Alfred Pennyworth accidentally discovered this game, and then he couldn't help himself. He stayed in the game all day and night, dragging Bruce all the way from the death of his parents to a family full of children and grandchildren.
Alfred always thought this was just a game, until one day a certain Mr. Bruce who looked exactly like the one in the game came to his door, and he realized that this didn't seem to be a game.
Purpose: Thank you to fate for making us a family