The ML soul is scattered all over the world he made and has multiple bodies?? He makes a few world that only MC could enter. In the world, there is multiple ML bodies that is obsessed with MC. MC has a system. In the first world, ML is MC butler and a knight of some sort. I don't think the translation is completed. More info, the first world is in a western setting and MC kept getting killed. In another arc, ML bodies are princes from the sea kingdom.
I'm pretty sure this is the novelo you're looking for. MC is a young master in the first world and there are 3 bodies that are ML. The novel is finished and it's awesome! It's called: Game Loading
Game Loading? https://www.novelupdates.com/series/game-loading/ only remember this because I remember getting sick of it at the sea kingdom arc lol, too much drama