I expected this from the start. The manga has all kinds of plothole from the very first chapter. He got a headache, collapsed and got reincarnated in the other world? And then we simply forget that he came from another world? What's the purpose of the transmigration trope then? Not to mention he suddenly became an alpha white king for no reason.
While reading this last time, I only had three thoughts: The author was a terrible author, the author forgot his own story, the author couldn't care less. If it's the latter, you shouldn't care that it's axed either.